Quadrajet Carburetor Power Piston

USA made power piston retainer bushing and power piston tuning spring kit are two of our most popular products. A secure, tight fitting power piston retainer will protect your primary metering rods from getting bent when installing the airhorn. Save your rods, replace your PP-retainer today!

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Adjustable Part Throttle (APT) Screw, for power piston adjustmen $4.50
APT screw allows adjustment of height of primary metering rods...see more

Adjustable Part Throttle (APT) screw allows adjustment of height of primary metering rods within the primary jets. Great for…see more

Part Number

3630

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Mixture Control Solenoid Plunger - GM $6.95

Specifications:
Rod Length: 1.56"
Rod Diameter: 1.75"
Plunger Top: 1.10" x 1.20" Quantity: 1 Replacement Mixture Control Solenoid Plunger used on Computer…see more

Part Number

3137M

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Power Piston (APT) Metering Adjustment Screw $9.95

Specifications:
Length: 1.10"
Thread diameter: .157" Quantity: 1 Power Piston Metering Adjustment Screw allows adjustment of height of primary metering rods within…see more

Part Number

3137G

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Quadrajet / Dualjet Power Piston Retaining Bushing $2.95
Nylon bushing replaces your loose fitting original without having to disassemble the power piston...see more

Nylon bushing replaces your loose fitting original without having to disassemble the power piston, due to the unique split design.…see more

Part Number

3622

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Quadrajet / Dualjet Power Piston Spring Assortment, 4 color code $9.50
Great aid when tuning for a larger than stock camshaft. Engines that...see more

Four color coded power piston springs, allow for fine tuning of primary metering rod engagement. Great aid when tuning for…see more

Part Number

3601

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Quadrajet / Dualjet Primary Rod Retaining Spring, fits early sty $2.95
Retaining spring is used to retain the primary metering rods to the power piston...see more

Retaining spring is used to retain the primary metering rods to the power piston. Fits all 1974 and earlier Rochester…see more

Part Number

2581

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Quadrajet / Dualjet Primary Rod Retaining Spring, fits later sty $1.95
Retaining spring is used to retain the primary metering rods to the power piston...see more

Retaining spring is used to retain the primary metering rods to the power piston. Fits most 1975 and later…see more

Part Number

2582

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Quadrajet / Dualjet Springs for Primary Metering Rods (2 springs $4.95
Pair of Metering Rod Springs for 1981-up GM Rochester Quadrajet carburetors. (Long Version)...see more

Specifications:
Length: .710"
Outside diameters: .160" & .100"
Wire diameter: .0075" Pair of Metering Rod Springs for 1981-up GM Rochester CCC Quadrajet carburetors. (Long…see more

Part Number

3603

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Retaining Clip for Quadrajet Power Piston $3.95
Replaces OEM part # 7034339...see more

Retaining clip is used on some Rochester Quadrajet carburetors to manually hold down the power piston.
Quantity: 1 retaining clip Replaces OEM…see more

Part Number

3621

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Spring for APT Power Piston Metering Adjustment $2.49

Specifications:
Length: .550"
Outside diameter: .325"
Wire diameter: .030" Quantity: 1 Note:
This spring works with #3137G ATP adjustment screw. (Sold separately)…see more

Part Number

2021C

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USED - Lean Mixture Screw Spring $5.99

  USED spring locates under lean mixture screw # 3137G.  Used on computer…see more

Part Number

U-SP-005

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