Engines & Components | Summit Racing

Dorman Expansion Plugs 550-034

Engine Expansion Plugs, Steel, 3.00 in. Diameter, Chevy, GMC, Set of 10

Part Number: RNB-550-034

Not Yet Reviewed

Estimated Ship Date: May 8, 2026 if ordered today

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Estimated Ship Date: May 8, 2026 if ordered today

Summit Racing™ Valve Springs SUM-174030D-1

SBC 1.550 Dual Springs, Endurance Solid Roller, .700 Max Lift @ 240 Lb. seat @ 1.900 Installed, 625 Lbs. @ 1.200 Open, 1.130 C.B., 550 Rate, PAC 1243

Part Number: SUM-174030D-1

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Continental Belts and Hoses Powersports Drive Belts 550J6

INDUSTRIAL POSITIVE DRIVE BELTS

Part Number: CEL-550J6

Not Yet Reviewed

Estimated Ship Date: May 6, 2026 if ordered today

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Estimated Ship Date: May 6, 2026 if ordered today

Continental Belts and Hoses Powersports Drive Belts 550J10

INDUSTRIAL POSITIVE DRIVE BELTS

Part Number: CEL-550J10

Not Yet Reviewed

Estimated Ship Date: May 6, 2026 if ordered today

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Estimated Ship Date: May 6, 2026 if ordered today

Continental Belts and Hoses Powersports Drive Belts 550J12

INDUSTRIAL POSITIVE DRIVE BELTS

Part Number: CEL-550J12

Not Yet Reviewed

Estimated Ship Date: May 6, 2026 if ordered today

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Estimated Ship Date: May 6, 2026 if ordered today

PAC Racing 500 Series Valve Spring Retainers PAC-R550

Dual Spring 500 Series Retainer - Titanium Retainer for RPM Sereis Dual Valve Springs. Lock angle: mini 8 de

Part Number: RSC-PAC-R550

Not Yet Reviewed

Estimated Ship Date: Jun 9, 2026 if ordered today

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Estimated Ship Date: Jun 9, 2026 if ordered today

Continental Belts and Hoses Accessory Belts 5VX550-A

Industrial Belt, Conti VX Advance

Part Number: CEL-5VX550-A

Not Yet Reviewed

Estimated Ship Date: May 7, 2026 if ordered today

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Estimated Ship Date: May 7, 2026 if ordered today

Melling Cylinder Sleeves CSL550

Cylinder Sleeve, Cast Iron, 2.000 in. Bore I.D., 0.125 in. Wall Thickness, 6.500 in. Length, Each

Part Number: MEL-CSL550

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

King Engine Bearings Main Bearings MB 550AM 010

Main Bearing Set, LAND ROVER 12J 2.3L D

Part Number: KGB-MB550AM010

Not Yet Reviewed

Estimated Ship Date: Jul 15, 2026 if ordered today

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Estimated Ship Date: Jul 15, 2026 if ordered today

Harland Sharp Polylocks Rocker Arm Nuts PL038K

Harland Sharp Polylocks Rocker Arm Nuts PL038K

Polylocks, 3/8 in. Thread, .550 in. Diameter, Set of 4

Part Number: CSP-PL038K

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

PRW Power 12-Point Poly Locks 1200123

Rocker Arm Nut, Power 12-Point, Polylock, 3/8 in. Stud, .550 in. O.D. Shank, Set of 16

Part Number: PQX-1200123

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

PRW RockerLocs 1200337

Rocker Arm Nuts, PRW RockerLoc, 7/16 in. Stud, Hex Head, .550 in. O.D. shank, Set of 16

Part Number: PQX-1200337

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

PRW Power 12-Point Poly Locks 1200127

Rocker Arm Nut, Power 12-Point, Polylock, 7/16 in. Stud, .600 in. O.D. Shank, .550 in. Undercut, Set of 16

Part Number: PQX-1200127

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

PAC Racing 1200 Series Circle Track Valve Springs PAC-1243

Valve Spring, 1200 Series Circle Track, Dual, 1.550 in. O.D., 550 lbs./in. Rate, 1.100 in. Coil Bind Height, Each

Part Number: RSC-PAC-1243

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

PAC Racing RPM Series Valve Springs PAC-1237X

Valve Spring, 1200 Series, Dual, 1.274 in. Outside Diameter, 550 lb/in., 0.630 in Inside Diameter, Each

Part Number: RSC-PAC-1237X

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Trick Flow® by PAC Racing Dual Valve Springs TFS-16943-2

Valve Springs, PAC Racing, Dual, 1.550 in. Outside Diameter, 550 lbs./in. Rate, 1.068 in. Coil Bind, Pair

Part Number: TFS-16943-2

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

COMP Cams Valve Springs 26943-1

Valve Springs, Dual, 1.550 in. Outside Diameter, 550 lbs./in. Rate, 1.100 in. Coil Bind Height, Super Finish, Each

Part Number: CCA-26943-1

Not Yet Reviewed

Estimated Ship Date: Jun 10, 2026 if ordered today

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Estimated Ship Date: Jun 10, 2026 if ordered today

Pro-X Racing Parts Powersports Drivetrain Bearings and Seals 23.S115070

ProX Frontwheel Bearing Set Aprilia RXV/SXV 450/550 '06-11

Part Number: PXR-23-S115070

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

COMP Cams Valve Springs GP965-2

SPRINGS, DUAL .550" LIFT BRIGGS

Part Number: CCA-GP965-2

Not Yet Reviewed

Estimated Ship Date: Jun 10, 2026 if ordered today

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Estimated Ship Date: Jun 10, 2026 if ordered today

COMP Cams Powersports Valve Springs GP965-1

SPRING, DUAL .550" LIFT BRIGGS

Part Number: CCA-GP965-1

Not Yet Reviewed

Estimated Ship Date: Jun 11, 2026 if ordered today

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Estimated Ship Date: Jun 11, 2026 if ordered today

Pro-X Racing Parts Powersports Piston Rings 02.5592

ProX Piston Ring Set Arctic Cat EXT 550 '91-95 (73.40mm)

Part Number: PXR-02-5592

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

K&N Performance Gold Oil Filters HP-4005

Oil Filter, Performance Gold, Canister, 6.66 in. Tall, 3.72 in. Diameter, 1-1/16 in.-16 Thread, Bypass Relief, 18-22 psi, Anti-Drainback, Each

Part Number: KNN-HP-4005

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

K&N Performance Gold Oil Filters HP-7032

Oil Filter, Performance Gold, Cartridge, 4.25 in. Tall, 3.22 in. OD, Rubber Gasket, BMW, Porsche, 3.0L, 3.4L, 3.6L, 3.7L, 3.8L, 4.8L, 5.0L, Each

Part Number: KNN-HP-7032

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Engine Works Polylocks 78-8

Rocker Arm Nuts, Stud Girdle Polylock, 12-Point, Non-Roller, 7/16 in.-20 Thread, 0.600 in. Slot Width, 2.60 in. Length, Set of 8

Part Number: EW1-78-8

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Howards Cams Pacaloy Mechanical Roller Valve Springs 98223-1

Valve Spring, Pacaloy Mechanical Roller, Dual, 1.260 in. O.D., 0.624 in. I.D., 610 lbs/in., 0.550 in. Maximum Lift, 1.115 in. Coil Bind, Each

Part Number: HRS-98223-1

Not Yet Reviewed

Estimated Ship Date: Jun 9, 2026 if ordered today

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Estimated Ship Date: Jun 9, 2026 if ordered today

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