Performance & Replacement Transmission & Drivetrain Parts

Building awesome horsepower is only part of the story. You need to deliver all that power to your car or truck’s wheels! We’ve got torque-hungry high performance automatic...

Building awesome horsepower is only part of the story. You need to deliver all that power to your car or truck’s wheels! We’ve got torque-hungry high performance automatic and manual transmissions for street and strip applications, torque converters and clutch sets, flexplates and flywheels, plus limited-slip differentials, spools, lockers, ring and pinion sets, driveshafts, U-joints, axles, bearings, C-clip eliminator kits, transfer cases, shift kits, and rebuild kits. We also have a wide selection of trans-brakes, shifters, cables, and accessories—everything you need to put the power to the ground, Summit style.

Individual Parts

Part Groups

Results 1 - 25 of 240

Eddie Marine Mercruiser Shift Quadrants EMI-125

Shift Quadrant/ECM Bracket,EMI Thunder,Keeps Mercruiser components in their stock location,Each

Part Number: EDM-EMI-125

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Sierra Marine Roller Bearings 18-1120

Roller Bearing, Pinion, Mercruiser, Each

Part Number: RRA-18-1120

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

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Estimated Ship Date: Oct 8, 2025 if ordered today

Sierra Marine Heavy-Duty U-Joints 18-6406

U-Joint, Heavy-Duty, Steel, 4 Plain Bearing Cap Style, Mercruiser, Each

Part Number: RRA-18-6406

Not Yet Reviewed

Estimated Ship Date: Oct 7, 2025 if ordered today

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Estimated Ship Date: Oct 7, 2025 if ordered today

Sierra Marine Engine Couplers 18-2171

Engine Coupler, Mercruiser, GM Engines, 6 Bolt Flange, Each

Part Number: RRA-18-2171

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Oct 8, 2025 if ordered today

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Estimated Ship Date: Oct 8, 2025 if ordered today

Sierra Marine Gimbal Bearings 18-21001

Gimbal Bearing, Non-Greasable, Mercruiser, Each

Part Number: RRA-18-21001

Not Yet Reviewed

Estimated Ship Date: Oct 7, 2025 if ordered today

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Estimated Ship Date: Oct 7, 2025 if ordered today

Quicksilver Marine Shift Cables 8M0176524

Lower shift cable for 1978 & newer MerCruiser MC-I, MR, Alpha One and Alpha One Gen II

Part Number: QSV-8M0176524

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Sierra Marine Heavy-Duty U-Joints 18-2104

U-Joint, Heavy-Duty, Rockwell Style , Greasable, 4 Grooved, Steel, Mercruiser, Mercury Marine, OMC, Volvo Penta, Each

Part Number: RRA-18-2104

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

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Estimated Ship Date: Oct 8, 2025 if ordered today

Sierra Marine Shift Cable Components 18-2353

Shift Rod Bushing Assembly, Marine, Mercruiser, Each

Part Number: RRA-18-2353

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

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Estimated Ship Date: Oct 8, 2025 if ordered today

Sierra Marine Oil Seals 18-0526

Oil Seal, 0.750 in. Shaft Size, 1.379 in. O.D., 0.256 in. Width, Mercruiser Stern Drive, Each

Part Number: RRA-18-0526

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

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Estimated Ship Date: Oct 8, 2025 if ordered today

Quicksilver Bellhousing Components 94996Q2

Sterndrive installation gasket set for 1983 & newer MerCruiser R, MR and Alpha One Gen II sterndrives (s/n 6225577 and above)

Part Number: QSV-94996Q2

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Quicksilver Bellhousing Components 16755Q1

Quicksilver Gasket Kit MerCruiser Bell Housing Installation 16755Q1

Part Number: QSV-16755Q1

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Sierra Marine Gimbal Bearings 18-21005

Gimbal Bearing, Greasable, Mercruiser, Each

Part Number: RRA-18-21005

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

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Estimated Ship Date: Oct 8, 2025 if ordered today

Sierra Marine Gimbal Bearings 18-21005K

Gimbal Bearing, Seal, Greasable, Mercruiser, Kit

Part Number: RRA-18-21005K

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

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Estimated Ship Date: Oct 8, 2025 if ordered today

Sierra Marine Gimbal Bearings 18-21006

Gimbal Bearing, Non-Greasable, Mercruiser, Each

Part Number: RRA-18-21006

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

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Estimated Ship Date: Oct 8, 2025 if ordered today

Sierra Marine Gimbal Bearings 18-2100K

Gimbal Bearing, Seal, Greasable, Mercruiser, Kit

Part Number: RRA-18-2100K

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

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Estimated Ship Date: Oct 8, 2025 if ordered today

Sierra Marine Oil Seals 18-0172

Oil Seal, 0.845 in. I.D., 1.500 in. O.D., 0.315 in. Width, Mercruiser Stern Drive, Each

Part Number: RRA-18-0172

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Sierra Marine Oil Seals 18-2009

Oil Seal, 0.375 in. Shaft Size, 0.750 in. O.D., 0.250 in. Width, Mercury Marine, Mercruiser Stern Drive, Each

Part Number: RRA-18-2009

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

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Estimated Ship Date: Oct 8, 2025 if ordered today

Sierra Marine Oil Seals 18-2011

Oil Seal, 0.750 in. Shaft Size, 1.250 in. O.D., 0.312 in. Width, Mercury Marine, Mercruiser Stern Drive, Each

Part Number: RRA-18-2011

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

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Estimated Ship Date: Oct 8, 2025 if ordered today

Sierra Marine Oil Seals 18-2013

Oil Seal, 0.875 in. Shaft Size, 1.250 in. O.D., 0.188 in. Width, Mercury Marine, Mercruiser Stern Drive, Each

Part Number: RRA-18-2013

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

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Estimated Ship Date: Oct 8, 2025 if ordered today

Sierra Marine Oil Seals 18-2055

Oil Seal, 0.750 in. Shaft Size, 1.127 in. O.D., 0.149 in. Width, Mercury Marine, Mercruiser Stern Drive, Each

Part Number: RRA-18-2055

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

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Estimated Ship Date: Oct 8, 2025 if ordered today

Sierra Marine Oil Seals 18-2003

Oil Seal, 2.250 in. Shaft Size, 3.000 in. O.D., 0.437 in. Width, Mercruiser Stern Drive, Each

Part Number: RRA-18-2003

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

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Estimated Ship Date: Oct 8, 2025 if ordered today

Sierra Marine Oil Seals 18-2007

Oil Seal, 1.000 in. Shaft Size, 1.500 in. O.D., 0.312 in. Width, Mercury Marine, Mercruiser Stern Drive, Each

Part Number: RRA-18-2007

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

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Estimated Ship Date: Oct 8, 2025 if ordered today

Sierra Marine Oil Seals 18-2015

Oil Seal, 0.750 in. Shaft Size, 1.250 in. O.D., 0.250 in. Width, Mercury Marine, Mercruiser Stern Drive, Each

Part Number: RRA-18-2015

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

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Estimated Ship Date: Oct 8, 2025 if ordered today

Sierra Marine Oil Seals 18-2026

Oil Seal, 0.875 in. Shaft Size, 1.250 in. O.D., 0.188 in. Width, Johnson/Evinrude Outboard, Mercruiser Stern Drive, Mercury Marine, Each

Part Number: RRA-18-2026

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

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Estimated Ship Date: Oct 8, 2025 if ordered today

Sierra Marine Shift Cable Components 18-2349

Shift Shaft Sleeve, Marine, Mercruiser, Each

Part Number: RRA-18-2349

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

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Estimated Ship Date: Oct 8, 2025 if ordered today

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