Marine Engine Depot. Sierra International

Mercruiser Bravo Engine Coupler (by Sierra)

701169

$463.99 $579.99

Mercruiser Bravo Engine Coupler by Sierra. Will work on Bravo I, Bravo II, and Bravo III. Includes all mounting hardware. Replaces: Mercruiser 18311A17, Mercruiser 861523A-9, Mercruiser 8M0098795, Mallory 9-72503, and Sierra- 18-2412.

Sierra Engine Coupler 18-2171 Replaces Mercruiser 76850A2

18-2171

$189.99

Sierra 18-2171 Engine Coupler fits all GM model engines except MR/Alpha/Bravo with a "triangular" three-bolt coupler.

3.0L/181ci Sierra Carburetor Mounting Gaskets 18-0994-9

285242

$2.79 $3.59

Sierra Carburetor Mounting Gaskets - Set of Two. Sierra Part Number 18-0994-9.

3.0L/181ci Raw Water Cooled Thermostat 140 Degree 18-3550

515300

$27.99

Sierra 18-3550 Thermostat for Mercury/Mercruiser Inboard/Outboard Marine Engines. Temperature Rating: 140 Degrees. Fits Mercruiser 120/2.5L (s/n 2324347 & up) w/ cast iron exhaust manifolds. Fits Mercruiser 140-3.0L (s/n 0L340999 & below) and 165. Replaces Marine Power 0214-002.

Electric Fuel Pump 18-7330 Replaces 3855958

187330

$175.99 $219.99

Sierra 18-7330 Electric Fuel Pump. Replaces OMC 988037, 3855958, 3854280, 3857650, and Volvo 3855958, 3854280, 3857650, 988037, Marine Power 438613.

3.0L/181ci Sierra Carburetor 18-7370N

426103

$350.99 $375.00

Flow tested throughout the entire throttle range. Fuel mixture and idle settings are preset only minor idle and choke adjustments are needed. Fits: mcm 120/2.5L & 140/3.0L. Replaces Mercruiser Stern Drive 3310-860070a2.

4.3L/262ci - 5.7L/350ci I/O Oil Filter 18-7876-1

397554

$9.59 $11.99

Sterndrive and Inboard Oil Filter. Thread spec: 13/16 inch x 16 NPT.

Sierra International Fuel Filter 18-7977

187977

$51.99

Replaces: Mercruiser 35-866171A01. Fits 350 Mag MPI Alpha/Bravo, 350 Mag MPI Horizon Alpha/Bravo , 350 Mag MPI Horizon MIE, 350 Mag MPI MIE, 496 MAG, 496 MAG H.O., 5.0 MPI Alpha/Bravo, 8.1L Inboard, 8.1L Inboard H.O., MX 6.2L MPI Alpha/Bravo, M.

Sierra International Fuel Filter 18-7981 Replaces 35-884380T

187981

$38.99

Replaces: Mercury Marine 35-884380T and 35-8M0020349. Fits: All Verados, 90HP (DFI) (3 cyl), 115 DFI (3 cyl) / 200HP (DFI) / 225HP (DFI) (including 3.0L DFI).

Sierra Outboard Fuel Pump 18-8866 Replaces 899106T01

188866

$109.99

Sierra Outboard Fuel Pump Part Number 18-8866. Replaces Mercury 899106T01 and 892874T01. Fits Mercury 4 stroke outboards.

Sierra International Starter Solenoid 18-5817

185817

$25.99

Curved Bracket. Fits Outboard Starters & Mercruiser Starter & Power Trim.

Sierra International Ignition Coil 18-5186

185186

$56.99

Ignition Coil for Johnson, Evinrude, Mercury, Mariner. For use on Mercury, Chrysler and Force Outboard engines. Replaces Mercury 339-8327574A4.

Sierra Fuel Sender 4-24" Depth, No Gauge 90424P

815297

$42.99

Adjustable for tank depths from 4" to 24". Left or right arm adjustable in 90° increments. Standard SAE 5-hole pattern, rust proof Delrin® flange with rigid aluminum insert. 10-24 stud connections for maximum integrity. Stainless steel, aluminum and brass construction. 240 (empty) to 33 (full) ohm resistance range. Includes gasket, screws and instructions.

Sierra Service Valve Kit 18-7044-1

187044

$25.99

Sierra 18-7044-1 Service Valve Kit for Johnson & Evinrude Engines. Fits all Johnson/Evinrude outboards with primer valve (except 1993 9.9 & 15 horsepower). Includes 18-0871 Service Valve w/ O-Ring. Replaces Johnson/Evinrude 175158 and 437228.

Sierra 130 Degree Thermostat Kit 18-3672

183672

$26.99

Sierra Thermostat Kit 18-3672. Includes 18-3553 Thermostat and 18-0182 Thermostat Gasket.

Sierra 142 Degree Thermostat 18-3551 Replaces 807252T1, 59137

18-3551

$25.99

Sierra Thermostat Kit 18-3551. For 351 CID Engines. Used on all V-8 Chrysler engines w/Rochester carburetors 1986 - present. For : Raw water cooled engines, Temperature Rating: 142°F. Height : 1.5. O.D. : 2.125.

Sierra 143 Degree Thermostat 18-3543 Replaces 5005440

183543

$25.99

Sierra Thermostat 18-3543 . Fits: 40-250hp E-tech, 6-55hp, Cross V4 & V6, 9.9 4-Stroke (1994-01), 15 4-Stroke (1994-01).

Sierra 143 Degree Thermostat Kit 18-3673

183673

$47.99

Sierra Thermostat Kit 18-3673. V-4 Crossflow. Contains: 18-0675 Thermostat Gasket, 18-0977 Thermostat Gasket, 18-2391 Grommet, 18-3564 Poppet Relief Valve, 18-1243 Valve Springs, 18-3543 Thermostat.

Sierra 160 Degree Thermostat Kit 18-3647 Replaces 807252Q5

183647

$38.09

Sierra Thermostat Kit 18-3647. Replaces: Mercrusier 807252Q5.

Sierra 160 Degree Thermostat Kit 18-3677 Replaces 3856961

183677

$28.99

Sierra Thermostat Kit 18-3677. Replaces: OMC 3856961. Contains: 18-7170 O-Ring, 18-0398 Thermostat Gasket.

Sierra Marine Thermostat Housing 18-1989

181989

$194.99

Sierra Marine stainless steel thermostat housing 18-1989.

Sierra Water Pump Kit With Housing 18-3327

183327

$43.99

Sierra 18-3327 Water Pump Kit. Replaces: OEM 0394711.

Sierra Water Pump Kit With Housing 18-3396-1

183396

$94.99

Sierra 18-3396-1 Water Pump Kit. Replaces: 61A-W0078-A2-00 and 61A-W0078-A3-00.

Sierra Water Pump Kit Without Housing 18-3388

183327-copy

$43.99

Sierra 18-3327 Water Pump Kit. Replaces: OEM 0394711.

Sierra Water Pump Repair Kit With Housing 18-3392

183392

$69.99

Sierra 18-3392 Water Pump Kit with Bleeder Hole. Replaces: OMC 434421.

Sierra International Fuel Pump Service Kit 18-7817

187817

$25.99

Sierra 18-7817 Fuel Pump Kit for Mercury and Mariner Outboards.

Sierra International Ignition Coil Kit 18-5176

185176

$41.99

Sierra 18-5176 Ignition Coil Kit for Johnson & Evinrude Outboard Engines. Replaces OEM 0584561.

Sierra International Switch Box 18-5775

185775

$238.99

Sierra International Part Number 18-5775. Switch Box for 3 & 6 cylinder outboards with ADI ignition system.

Sierra International Switch Box 18-5777

185777

$203.99

Sierra International Part Number 18-5777. Replaces Mercury 339-7452A15 and 339-7452A19.

Sierra Carburetor Kit 18-7098-1 Replaces 3302-804844

187098

$80.99

Sierra 18-7098-1 Carburetor Gasket Kit for Mercury, Mariner. Fits MCM 4 cylinder, V-6 and V-8 CID engines 1986 and newer. Replaces Mercruiser 3302-804844.

Sierra Carburetor Kit 18-7226 Replaces 1395-9650

187226

$65.99

Sierra 18-7226 Carburetor Repair Kit for 30 JET, 40/45 4 CYL 4 Stroke, Carb models WMA-7B, 9, 10, 13.

Sierra Carburetor Kit for Mercury/Mariner Outboard 18-7750-1

187750

$49.00

Sierra 18-7750-1 Carburetor Gasket Kit for Mercury, Mariner. Replaces: Mercury 8236354 and 1395-823635 4.

Sierra Carburetor Kit with Float 18-7222

187222

$26.99

Sierra Carburetor Kit 18-7222, contains 18-7210 Float. Interchangeable with the following: Evinrude/Johnson 398729, 396701, 392061, Mallory 9-37107.

Sierra Medium Carburetor Kit 18-7212

187212

$57.99

Sierra 18-7750-1 Carburetor Gasket Kit for Mercury, Mariner. Replaces: Mercury 8236354 and 1395-823635 4.

Sierra International Solenoid 18-5808 Replaces 47886T

185808

$34.99

Sierra 18-5808 Starter Solenoid for OMC, Mercury, Johnson & Evinrude.

Sierra 1/4" Premium Primer Bulb 18-8002EP-1

188002EP1

$32.99

Sierra 18-8002EP-1 1/4" Premium Primer Bulb. For 1/4" I.D. Hose. Comes complete with two hose clamps.

Sierra Fuel Pump 18-7283 Replaces 97401A2

187283

$145.99

Sierra 18-7283 Fuel Pump for GM V-8 305, 350, 228 / 230 / 260 / 898. Flange ID M60600. Rated at 5-8 psi and 80 gph. Replaces Mercrcusier 8M0058164, 97401A2, A8, 861678A1. Uses gasket 18-0889.

Sierra Fuel Pump 18-7326 Replaces 805656A2

187326

$305.99

Sierra 18-7283 Fuel Pump for 1992-93, 1996 fuel injected and carbureted 4.3L with inline electric pump. Replaces Mercury 805656A2; OMC 3858261, 3857986, 3850809, 3854620.

Sierra Fuel Pump 18-7349 for 2-Stroke 115 HP - 300 HP

187349

$41.99

Sierra 18-7349 Fuel Pump for 2-Stroke 115 HP - 300 HP (1984-2004). Uses Kit 18-7788. Replaces Yamaha 6E5-24410-03-00.

Sierra Fuel Pump 18-7350 Replaces 397839

187350

$71.99

Sierra 18-7349 Fuel Pump for 6/8/9.9/15 HP 1981-92. Replaces: OMC 397839, 391638, 395091, 397274. Uses repair kit 18-7823.

Sierra Fuel Pump 18-7352 Replaces 438556

186767

$356.99

Sierra 18-7352 Fuel Pump for Johnson, Evinrude 25-55 HP. For Use On Engine Models: 1976-1989 25-55 HP, non-VRO models. Replaces OEM 0438556.

Sierra Fuel Pump 18-7353 Replaces 438555

187353

$85.99

Sierra 18-7353 Fuel Pump for 20-30 HP 1990-2000 Outboards. Replaces: OMC 438555, 433386. Includes mounting gasket. Uses repair kit 18-7800.

Sierra Impeller 18-3007 Replaces 47-89983

183007

$25.99

Sierra 18-3007 Impeller. For - 60hp. OD: 2.005 Bore: 0.752.. Thickness: 0.752. Key: Round. Blades: 63. Replaces: Mercury 47-89983, 4789983T.

Sierra Impeller 18-3056 Replaces 47-43026-2

183056

$25.99

Sierra 18-3056 Impeller. OD: 3.479. Bore: 0.875. Thickness: 1.260. Key: ROUND. Blades: 6. For Alpha I-Generation 2 s/n D494569 & above. Replaces: Honda 19210-ZW1-00, Mercury 47-43026-2, 47-43026T2 .

Sierra Impeller 18-3059 Replaces 5001593

183059

$26.99

Sierra 18-3059 Impeller. OD: 3.510. Bore: 0.880. Thickness: 1.270. Key: Oblong. Includes 18-3299 Impeller Key. Blades: 6. Replaces: 395864, 397131, 435821, 435748, 5001593.

Sierra Impeller Kit 18-8926

188926

$41.99

Sierra 18-3007 Impeller. For 5.7, 6.0 & 8.1L models with serpentine belt driven water pumps

Sierra Impeller Repair Kit 18-3214

183214

$41.99

Kit Contains: (3) Impeller Gaskets, (1) Seal Ring, (1) Impeller, (1) Impeller Plate and (1) O-Ring . For Alpha I - Generation II - S/N D494569 & Above. Replaces: Mercury 47-43026T6.

Sierra International Fuel Line Assembly 18-8009EP-2

188009EP1

$61.99

Sierra 18-8009EP-2 Fuel Line Assembly. Premium rubber fuel line: polyester braid, weather resistant CPE cover, flexible THV barrier layer. Resists kinking and easy to clamp.Fuel Line Hose Size: 3/8" or 9.5mm High Flow. Complete Fuel Line Assembly: 8' or 2.4m. Replaces OMC 5008609.

Sierra Medium 3/8" Primer Bulb Assembly 18-8005EP-1

188005EP1

$29.99

Sierra 18-8005EP-1 Primer Bulb Assembly Replaces OEM 5008586, 13330A3, 13330Q, 13330Q5. For 3/8" I.D. hose, large capacity bulb, comes complete with two hose clamps.

Sierra Medium Universal 5/16" Primer Bulb Assembly 18-8004EP-1

188004EP1

$29.99

Sierra 18-8004EP-1 Primer Bulb Assembly. Replaces OEM 5008605, 89396A38, 89396Q38. For 5/16" I.D. hose, large capacity bulb, comes complete with two hose clamps.

Sierra Medium Water Pump Kit 18-3517 Replaces 46-96148A8

183517

$25.99 $38.99

Sierra 18-3517 Water pump kit with upper housing for Mercruiser 1, R, MR, Alpha I stern drives & many Mercury outboards. Replaces Mercury 46-96148A5, 46-60367A1, 46-96148A8, Johnson/Evinrude 438602, 436957.

Sierra Medium Water Pump Kit with Base 18-3319

183319

$49.99

Sierra 18-3319 Water Pump Kit. Includes Base 18-3419. Replaces: Mercury 46-42579A4.

Sierra Water Pump Kit 18-3150 Replaces 9-48350, 46-807151A14, 46-807151A7

183150

$107.99

Sierra 18-3150 Water Pump Kit for Mercury and Mariner Outboard Motors.

Sierra Water Pump Kit 18-3324

183324

$65.80 $91.99

Sierra 18-3324 Water Pump Kit for Mercury and Mariner Outboard Motors.

Sierra Water Pump Kit 18-3324 Replaces 46-77177A3

183324

$62.99 $91.99

Sierra 18-3324 Water Pump Kit for Mercury and Mariner Outboard Motors.

Sierra Water Pump Kit 18-3389 Replaces 436957

183389

$76.99

Sierra 18-3389 Water Pump Kit. Replaces: OEM 436957, 438602.

Sierra Water Pump Kit 18-3570 Replaces 817275A1, 817275A2

183570

$65.99

Sierra 18-3570 Water Pump Kit for Mercury and Mariner Outboard Motors.

Sierra Water Pump Kit with Housing 18-3382 Replaces 393630

183382

$43.99

Sierra 18-3382 Water Pump Kit. Replaces Evinrude Johnson 393630 and Mallory Marine 9-48211.

Sierra Water Pump Kit with Housing 18-3415 Replaces Yamaha 63D-W0078-01-00

183415

$47.99

Sierra 18-3415 Water Pump Kit. Replaces: Mallory 9-43253. For: 40HP, 50HP, 60HPJet 1995-Up. Includes impeller 18-3069.

Sierra Water Pump Kit with Housing 18-3454 Replaces 438592

183454

$66.99

Sierra 18-3389 Water Pump Kit. Replaces: OEM 436957 and 438602. For: 40, 50, 25 Jet, 30 Jet 1995-Up. Includes impeller 18-3104.

Mercruiser/OMC/Volvo 68 Amp 3-Wire Alternator Sierra 18-5957 Replaces 78403A2

185957

$271.99

68 Amp Alternator for Mercruiser, OMC, Volvo. 3 Wire connection. Replaces Mando, Motorola And Original Equipment Delco, uses Same Electrical Connections And Mounting Method. Equipped With Fan And Drive Pulley.

Sierra 1970-78 Heavy-Duty Starter 18-5911 Replaces 50-76965A4

185911

$252.99

Sierra Starter 18-5911 Clockwise (Heavy-Duty) (No Core). 9 tooth For GM engines, bottom mount straight across bolt pattern. 100-245 HP 1970-78 (GM).

Sierra International Outboard Starter 18-5634 Replaces 0586283

185634

$119.99

Sierra 18-5634 Outboard Starter for Johnson & Evinrude. Fits 140 HP 1977 Models.

Sierra International Stator 18-5865 Replaces 398-5704A7

185865

$213.99

Mercury Stator by Sierra for 50-70 HP engines. Replaces Mercury 398-5704A7, 398-5704A2, 398-5704A5.

Sierra International Stator 18-5870 Replaces 398-832075A21

185870

$185.99

Mercury Stator by Sierra for 30-125 HP engines. Replaces Mercury 398-832075A21, 398-8320754A4, 398-9873A19, 398-9873A28.

Sierra International Stator 18-5859 Replaces 398-5454A

185859

$226.99

Sierra Stator 18-5859. Replaces Mercury/Mariner 398-5454A26.

Sierra Trigger Assembly 18-5797 Replaces 96455A8

185797

$180.99

Fits 3-cylinder models only. For use with Mercury 3 cyl. engines. Sierra replacement engine parts are designed to meet OEM specifications.

Sierra Marine Engine Coupler 18-2412 for Mercruiser Sterndrives

182412

$599.99

Fits Mercury Marine Bravo V-8, 5.0-Liter, 5.7-Liter, 6.2-Liter, 7.4-Liter, and some race 500 and 525 sterndrives.

Mercury Power Tilt & Trim Motor Sierra 18-6784 Replaces 824051

M18-6784

$269.99

Sierra Part Number 18-6784. Replaces: Mercury Assembly 824051. Two wire motor with harness and relays, for single ram three wire systems.

Mercury Tilt & Trim Motor Sierra 18-6777 Replaces 818903A1, 819762A4

186777

$434.99

Contains new 2- wire motor/reservoir, drive shaft coupler, oil seal, O-ring and hardware., yellow fill plug, square base o-ring.

Volvo Penta Tilt & Trim Motor Sierra 18-6791 Replaces 850046, 853520

M18-6791

$305.99

Sierra Tilt Motor for Older Model Volvo Marine Engines. Sierra Part Number 18-6791. Replaces: Volvo Penta 850046, 852520. Fits: Older Model Volvo.

Volvo Tilt & Trim Motor Sierra 18-6792 Replaces 854329

M18-6792

$308.99

Sierra tilt/trim motor for Volvo engines. Sierra Part Number 18-6792. OEM Part Numbers: 854329, 897720.

MCM GM V-6 Exhaust Manifold Sierra International 18-1952-1 Replaces 99746A17

181952

$345.99

Supplied with mounting package. Port & Starboard. Fits MCM GM V-6 (229 & 262 cid) engines (1985-2002). Interchangeable with the following: Barr MC-1-99746, GLM 51220, Mallory 9-40505, Mercruiser 99746A8, 99746A17, 99746A3, Osco 9745.

Sierra Alpha I Gen II Lower Shift Cable Kit 18-2603 Replaces 19543T-1

182603

$99.99

Contains shift cable (18-2190), outdrive gasket (18-2619-1), outdrive mounting gasket (18-2743) and shift cable bellows (18-2753-1). Sierra part number: 18-2603. Interchangeable with the following: GLM 21450, Mallory 9-72100, Mercruiser 19543T1, 19543T2, 865436A03.

Sierra MagForce Spark Plug Wire Set 18-8828-1 Replaces 84-863656A1

1888281

$120.99

For Ignition Type: Delco HEI, Number of Cylinders: 8. Replaces: Mercury 84-863656A1, Mallory 9-28009.

Sierra Spark Plug Wire Set 18-8804-1

18-8804

$69.99

Sierra 18-8804-1 Spark plug wire set. Used on most applications with Mercury 84-816761Q 4 except the 350 MAG SKI and 5.0L Alpha and Bravo (Gen+) where 18-8821-1 should be used.

Sierra Spark Plug Wire Set 18-8810-1 for Mercruiser Sterndrive and OMC Engines

188810

$55.99

Sierra 18-8810-1 Spark plug wire set. Replaces OEM 0503751, Mercury 816761Q16.

Sierra Spark Plug Wire Set 18-8821-1 Replaces 84813720A3

1888211

$79.99

Sierra 18-8821-1 Spark plug wire set. Used on 350 MAG SKI and 5.0L Alpha and Bravo applications. Replaces 84-816761Q 4.

Sierra Spark Plug Wire Set 18-8835-1 Replaces 84-816608Q82

1888351

$68.99

Sierra 18-8835-1 Spark plug wire set. Replaces Mercury 816608Q82 and 84816608Q82.

Sierra Transom Seal Kit 18-8206-1 Replaces Mercruiser 30-803099T1

188206

$177.99

Sierra 18-8206-1 Transom Seal Kit with Greasable Gimbal Bearing for Mercruiser Alpha I Gen II Sterndrives from 1991 and up. Replaces: Mercruiser 30-803099T1

Sierra Transom Seal Kit 18-8212-1 Replaces Mercruiser 30-803100T1

18-8212

$385.99

Sierra 18-8212-1 Transom Seal Kit with Greasable Gimbal Bearing for All Bravos 1982 & up. Replaces: Mercruiser 30-803100T1.

5.0L - 6.2L Sierra Small Block Circulating Water Pump 18-3599-2

183599

$145.99

Sierra Part Number 18-3599-2. Bi-Directional Circulating Water Pump. Fits 5.0L, 5.7L, and Mercruiser 6.2L (377cid). GM V-6 & V-8 305, 350, and 377 CID engines. Replaces Volvo 3853850, BRP3853850, Mercury Marine 8M0113734.

7.4L - 8.2L GM Big Block Circulating Water Pump 18-3577-1

830251

$183.99 $229.99

Circulating water pump used by Mercruiser, Volvo Penta, OMC, Crusader, Marine Power, Pleasure craft. For all GM V8 454 & 502ci marine engines with stamped steel or composite timing covers. Includes pump mounting gaskets. Pump is bi-directional. Replaces Mercury/Mercruiser 850454, 8504541, 67859, 17670, 811573, 8504541, GM 6269358, Pleasurecraft RA057019.

Sierra 18-2421 Power Trim Cylinder (Port) Replaces 14035A3

182421

$345.99

Sierra 18-2421 Power Trim Cylinder (Port) for Mercruiser R/MR/Alpha drives. Use with Sierra 18-2420 Power Trim Cylinder (Starboard). Replaces Mercruiser Stern Drive: 14035A3, 14035A5, 14035F1, 14035T, 14035T10.

Sierra 18-1987-1 Manifold Conversion Kit

M18-1987

$698.89

Sierra Manifold Conversion Kit, Part Number 18-1987. Convert Mercruiser stern drive engines to newer more efficient center rise manifolds. Includes: 2 Center Rise Manifolds; 2 Exhaust Elbows; 1 Thermostat housing; 1 Thermostat; 1 Thermostat cover.

Sierra 18-2258 Upper Gear Kit For Mercury V6 1.84:1 Replaces 43-803114T1

182258

$370.99 $495.99

Serra 18-2258 Mercruiser 1.84:1 Upper Unit Gear Set for Mercury V6 (470/485) applications. Interchangeable with GLM 11235 and Mercruiser Stern Drive 43-803114T1

Sierra 18-2451 Upper Unit Assembly for Mercruiser Sterndrive 1547-9412A21

M18-2451

$1,102.99

Sierra's 18-2451 Complete Upper Unit Assembly is designed for use in Alpha I stern drives. Designed to fit ratios 1.65:1 and 1.62:1. It is interchangeable with GLM 19200 and Mercruiser Stern Drive 1547-3917A16, 1547-3917A30, 1547-3917A38, 1547-3917A4, 1547-3917A8, 1547-5523A11, 1547-5523A66, 1547-5523A8, 1547-8265A16, and 1547-9412A21. Each Sierra product meets or exceeds the original equipment part it replaces.

Sierra 18-2452 Upper Unit Assembly for Mercruiser Sterndrive 1547-9412A22

M18-2452

$1,102.99

Sierra's 18-2452 Complete Upper Unit Assembly is designed for use in Alpha I stern drives. Designed to fit ratios 1.84:1 and 1.81:1. It is interchangeable with GLM 19300 and Mercruiser Stern Drive 1547-5523A49, 1547-5523A67, 1547-8265A17, 1547-9412A22, and 1547-9412A36. Each Sierra product meets or exceeds the original equipment part it replaces.

Sierra 18-2453 Marine Upper Unit Assembly for Mercruiser Stern Drive 1547-9412A23

M18-2453

$1,102.99

Sierra 18-2453. Designed for use in Mercruiser Alpha I engines. Ratios: 1.98:1 and 1.94:1. Includes one assembly per package. Each Sierra product meets or exceeds the original equipment part it replaces.

Sierra 18-4805 Complete Upper Gear Housing - 21:18 Ratio for OMC Sterndrive/Cobra Stern Drives

M18-4805

$2,617.99

Sierra's 18-4805 Complete Upper Gear Housing is designed for use in OMC 2.5L (1986-1989), 3.0L (1986-1993), and 5.0L (1989-1993) I/O engines. The gear housing features a 21:18 ratio. It is interchangeable with OMC Stern Drive 983885, 984771, 985242, and 986382. Each Sierra product meets or exceeds the original equipment part it replaces.

Sierra 18-4850 Complete Marine Gear Case for Mercury and Mariner Outboard Motor

M18-4850

$2,235.99

Sierra complete gearcase for Mercury Marine engines. Fits 100/115/125 4-cylinder with 6 Jaw Clutch Design II (2.07:1 ratio). Sierra Part Number 18-4850. OEM Part Number 1667-9011R6.

Volvo 50 Amp Alternator Sierra 18-5943 Replaces 872926

M18-5943

$533.99 $538.99

14 Volt 50 Amp Alternator for Volvo marine engines. Replaces Volvo Penta 872926, 3803227, 541663.

Volvo Penta Inboard Alternator Sierra 18-6955 Replaces 849748

M18-6955

$576.99

Sierra 18-6955 Inboard Alternator for Select Volvo Penta Marine Engines. Replaces Prestolite 110-258, 110-258A, and Volvo Penta 849748, 849748-9, Arco 60170, Caterpillar 10-258, 3001117.

5.0L/305ci - 5.7L/350ci Volvo Style Exhaust Manifold Sierra 18-1986-1 (1993 - Current)

613605

$311.21 $374.95

Fits GM Small Block 5.0L/305ci to 5.7L/350ci. Used on both Port and Starboard sides. Replaces Marine Power 0999-775, OMC & Volvo 3857723, 3847501, 3857579, 3852374-2, 3852374, and GLM 51430.