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Engines & Components

Engines & Engine Parts

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Engines & Engine Parts

Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched...

Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched top end kits, and complete rotating assemblies from the biggest names in the industry. You can add a set of high-flow cylinder heads to your powerplant, upgrade your valvetrain, improve your oiling system, or drop in a new set of pistons. We also have a complete selection of crankshafts, connecting rods, harmonic balancers, pulleys, and engine brackets. We even have everything you need to restore the horsepower that time has stolen from your...

Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched top end kits, and complete rotating assemblies from the biggest names in the industry. You can add a set of high-flow cylinder heads to your powerplant, upgrade your valvetrain, improve your oiling system, or drop in a new set of pistons. We also have a complete selection of crankshafts, connecting rods, harmonic balancers, pulleys, and engine brackets. We even have everything you need to restore the horsepower that time has stolen from your daily driver.

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Results 1 - 25 of 2000 +

Standard Motor T-Series Oil Pressure Warning Light Sending Units PS292T

Standard Motor T-Series Oil Pressure Warning Light Sending Units PS292T

Standard Motor T-Series Oil Pressure Warning Light Sending Units PS292T

Warning Light Sending Unit, T-Series, Oil Pressure, Thread-in, BMW, Land Rover, Rolls-Royce, Each

Part Number: SMP-PS292T

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

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Estimated Ship Date: Dec 8, 2025 if ordered today

Standard Motor T-Series Oil Pressure Warning Light Sending Units PS303T

Standard Motor T-Series Oil Pressure Warning Light Sending Units PS303T

Standard Motor T-Series Oil Pressure Warning Light Sending Units PS303T

Oil Pressure Sender/Switch, T-Series, OEM Replacement, Chevy, GMC, Pontiac, Each

Part Number: SMP-PS303T

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

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Estimated Ship Date: Dec 8, 2025 if ordered today

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Standard Motor Oil Pressure Gauge Sending Units PS-303

Standard Motor Oil Pressure Gauge Sending Units PS-303

4.75 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Standard Motor T-Series Oil Pressure Warning Light Sending Units PS423T

Standard Motor T-Series Oil Pressure Warning Light Sending Units PS423T

Standard Motor T-Series Oil Pressure Warning Light Sending Units PS423T

Oil Pressure Sender/Switch, T-Series, OEM Replacement, Ford, Mazda, Each

Part Number: SMP-PS423T

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

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Estimated Ship Date: Dec 8, 2025 if ordered today

Standard Motor T-Series Oil Pressure Warning Light Sending Units PS468T

Standard Motor T-Series Oil Pressure Warning Light Sending Units PS468T

Standard Motor T-Series Oil Pressure Warning Light Sending Units PS468T

Oil Pressure Sender/Switch, T-Series, OEM Replacement, Chrysler, Dodge, Jeep, Each

Part Number: SMP-PS468T

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

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Estimated Ship Date: Dec 8, 2025 if ordered today

Sierra Marine Drain Plugs 18-2244

Sierra Marine Drain Plugs 18-2244

Sierra Marine Drain Plugs 18-2244

Marine Drive Unit Components, Drain Plug, Gasket, 3/8 in. Thread, Each

Part Number: RRA-18-2244

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

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Estimated Ship Date: Dec 22, 2025 if ordered today

Sierra Marine Drain Plugs 18-1236

Sierra Marine Drain Plugs 18-1236

Sierra Marine Drain Plugs 18-1236

Marine Drive Unit Components, Drain Screw, Each

Part Number: RRA-18-1236

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

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Estimated Ship Date: Dec 22, 2025 if ordered today

Sierra Marine Drain Plugs 18-23711-9

Sierra Marine Drain Plugs 18-23711-9

Sierra Marine Drain Plugs 18-23711-9

Marine Drive Unit Components, Drain Screw, Set of 50

Part Number: RRA-18-23711-9

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

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Estimated Ship Date: Dec 22, 2025 if ordered today

Sierra Marine Drain Plugs 18-23751-9

Sierra Marine Drain Plugs 18-23751-9

Sierra Marine Drain Plugs 18-23751-9

Marine Drive Unit Components, Drain Screw, Gasket, Set of 50

Part Number: RRA-18-23751-9

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

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Estimated Ship Date: Dec 22, 2025 if ordered today

Sierra Marine Drain Plugs 18-8369

Sierra Marine Drain Plugs 18-8369

Sierra Marine Drain Plugs 18-8369

Marine Drive Unit Components, Oil Indicator, Each

Part Number: RRA-18-8369

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

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Estimated Ship Date: Dec 22, 2025 if ordered today

Sierra Marine Drain Taps 18-4697

Sierra Marine Drain Taps 18-4697

Sierra Marine Drain Taps 18-4697

Marine Drive Unit Components, Drain Tap, 1/4 in. NPT, Each

Part Number: RRA-18-4697

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

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Estimated Ship Date: Dec 22, 2025 if ordered today

Sierra Marine Drain Plugs 18-22441-9

Sierra Marine Drain Plugs 18-22441-9

Sierra Marine Drain Plugs 18-22441-9

Marine Drive Unit Components, Drain Plug, Gasket, 3/8 in. Thread, Set of 50

Part Number: RRA-18-22441-9

Not Yet Reviewed

Estimated Ship Date: Dec 11, 2025 if ordered today

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Estimated Ship Date: Dec 11, 2025 if ordered today

United Engine and Machine Oil Ring Support Rails R-08

Made in the USA United Engine and Machine Oil Ring Support Rails R-08

United Engine and Machine Oil Ring Support Rails R-08

Piston Oil Ring Spacers, United Engine and Machine Oil Ring Support Rails, 4.040 in. Bore, 3.615 in. Ring I.D., Each

Part Number: UEM-R08

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

United Engine and Machine Lock Rings PRJ100.3

Made in the USA United Engine and Machine Lock Rings PRJ100.3

United Engine and Machine Lock Rings PRJ100.3

Wrist Pin Lock Ring, Spirolox, 0.927 in. Diameter, .071 in. Thick, Each

Part Number: UEM-PRJ100-3

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

United Engine and Machine Lock Rings 93

United Engine and Machine Lock Rings 93

United Engine and Machine Lock Rings 93

Lock Ring, Piston Wrist Pin Retainer, C-clip Type, Carbon Steel, 1.040 in. O.D., KB Claimer Series, Each

Part Number: UEM-93

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

United Engine and Machine Lock Rings PRG110.3

Made in the USA United Engine and Machine Lock Rings PRG110.3

United Engine and Machine Lock Rings PRG110.3

Wrist Pin Retainers, Spirolox, .990 in. Diameter, Each

Part Number: UEM-PRG110-3

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

United Engine and Machine Piston Ring Sets 4000BD8.035

Made in the USA United Engine and Machine Piston Ring Sets 4000BD8.035

United Engine and Machine Piston Ring Sets 4000BD8.035

Piston Rings, 4.030 in. Bore, 1/16 in., 1/16 in., 3/16 in., Ductile, Plasma-moly, File Fit, 8-Cylinder, Set

Part Number: UEM-4000BD8-035

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

United Engine and Machine Piston Ring Sets 4000BD8.045

Made in the USA United Engine and Machine Piston Ring Sets 4000BD8.045

United Engine and Machine Piston Ring Sets 4000BD8.045

Piston Rings, 4.040 in. Bore, 1/16 in., 1/16 in., 3/16 in., Ductile, Plasma-moly, File Fit, 8-Cylinder, Set

Part Number: UEM-4000BD8-045

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

United Engine and Machine Piston Ring Sets 4000AM8.030

Made in the USA United Engine and Machine Piston Ring Sets 4000AM8.030

United Engine and Machine Piston Ring Sets 4000AM8.030

Piston Rings, 4.030 in. Bore, 5/64 in., 5/64 in., 3/16 in., Iron, Moly, 8-Cylinder, Set

Part Number: UEM-4000AM8-030

4.9 out of 5 stars ( 10 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

United Engine and Machine Lock Rings PRL99.3

Made in the USA United Engine and Machine Lock Rings PRL99.3

United Engine and Machine Lock Rings PRL99.3

Wrist Pin Lock Ring, Spirolox, .912 in. Diameter, .020 in. Thick, Each

Part Number: UEM-PRL99-3

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

United Engine and Machine Piston Ring Sets 4250BD8.065

Made in the USA United Engine and Machine Piston Ring Sets 4250BD8.065

United Engine and Machine Piston Ring Sets 4250BD8.065

Piston Rings, 4.310 in. Bore, 1/16 in., 1/16 in., 3/16 in., Ductile, Plasma-moly, File Fit, 8-Cylinder, Set

Part Number: UEM-4250BD8-065

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

United Engine and Machine Wrist Pins 0927X300K

United Engine and Machine Wrist Pins 0927X300K

United Engine and Machine Wrist Pins 0927X300K

Wrist Pin, Lightweight, .927 in. Diameter, 3.000 in. Length, 145 Grams, Each

Part Number: UEM-0927X300K

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

United Engine and Machine Piston Ring Sets 4000AM8.060

Made in the USA United Engine and Machine Piston Ring Sets 4000AM8.060

United Engine and Machine Piston Ring Sets 4000AM8.060

Piston Rings, 4.060 in. Bore, 5/64 in., 5/64 in., 3/16 in., Iron, Moly, 8-Cylinder, Set

Part Number: UEM-4000AM8-060

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

United Engine and Machine Piston Ring Sets 4000BM8.030

Made in the USA United Engine and Machine Piston Ring Sets 4000BM8.030

United Engine and Machine Piston Ring Sets 4000BM8.030

Piston Rings, 4.030 in. Bore, 1/16 in., 1/16 in., 3/16 in., Iron, Moly, 8-Cylinder, Set

Part Number: UEM-4000BM8-030

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

United Engine and Machine Piston Ring Sets 4125AM8.030

Made in the USA United Engine and Machine Piston Ring Sets 4125AM8.030

United Engine and Machine Piston Ring Sets 4125AM8.030

Piston Rings, 4.155 in. Bore, 5/64 in., 5/64 in., 3/16 in., Iron, Moly, 8-Cylinder, Set

Part Number: UEM-4125AM8-030

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

United Engine and Machine Lock Rings PRH107.3

Made in the USA United Engine and Machine Lock Rings PRH107.3

United Engine and Machine Lock Rings PRH107.3

Wrist Pin Retainers, Spirolox, .981 in. Diameter, 0.072 in. Thick, Each

Part Number: UEM-PRH107-3

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

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Summit Racing Speedcard. Synchrony Car Care.

Summit Racing Equipment SpeedCard

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