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QA1

QA1 Piston 35mm Large Body Linear/Digressive Twin

MPN: 9057-312 Catalog #: 001533272 Category: Shock And Strut Components Check Vehicle Fitment

Product Details

These pistons have flat linear compression and digressive rebound with up to 0.056 of preload to generate low-speed control without excessive high-speed forace, helping you maintain grip over surface irregularities. Used on both dirt and asphalt cars, these pistons can generate the force numbers you're looking for to keep the left rear up or keep the front end sealed off. The amount of shim stack preload, shim thickness, and diameter are all able to be tuned to tailer the force curve of the shock.

QA1 offers a variety of replacement & service parts to keep you on the road or track

Shock Piston - Linear / Digressive - Twintube Style - Aluminum - Gray Anodized - Each

QA1 1.0 Deg. - 1.5 Deg. Linear-Digressive Piston 35mm LBCT.

Vehicle Fitment

Universal or product-specific fitment. Please review the product details and contact us if you need help confirming fitment before ordering.

Product Specs

Brand
QA1
Part Number
9057-312
Catalog Number
001533272
Product Line
Shock and Strut Components
Category
Suspension
Type
Shock And Strut Components
UPC / Barcode
806990164711
Vendor Product Category
Suspension
Vendor Product Subcategory
Suspension Arms & Components
Length
5.30 in
Width
2.95 in
Height
0.65 in
Weight
0.05 lb
Units Per SKU
1
Freight / LTL
No
Ship Alone
No
Air Restricted
No
Prop 65
Y
CARB Approved
Yes
Clearance Item
No

Shipping & Availability

Current status 225 Available - Ready to ship
Estimated timing Usually ships within 24hrs

This item is showing available inventory. Most in-stock performance parts ship quickly, but timing can vary by warehouse, vendor cut-off time, holidays, and carrier pickup.

PROP 65 WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Inventory shown: 225 available as of 6/4/2026.

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