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HKS Engine Components › Piston Sets - Forged - 4cyl

HKS Forged Piston Kits

Part # hks21004-AT004 MFR # 21004-AT004 ID 780398

HKS 13-20 Subaru BRZ FA20 2.1L Low-Comp Step 2 Full Kit (Forged Pistons, I-Beam Con Rod, Crankshaft)

✓ In Stock (4 locations)
$4,900.00
Free ground shipping on eligible orders
⚠️ Not CARB Approved — Race/off-road use only. Not legal for street use on California-registered vehicles.
⚠️ CARB Acknowledgment Required — Buyer must confirm emissions compliance at checkout.
Identification
BrandHKS
Part Numberhks21004-AT004
MFR Part #21004-AT004
Item ID780398
Price GroupHKS C
Born-On Date2024-07-05
CategoryEngine Components
SubcategoryPiston Sets - Forged - 4cyl
Dimensions & Shipping
Dimensions13.4" × 11.4" × 9.5" (L×W×H)
Weight18.40 lbs
LTL FreightStandard Parcel
Air ShippingEligible
Stock & Availability
Status ✓ In Stock (4 locations)
Warehouses
● 01 ● 02 ● 03 ● 59
Regular StockNo
PowersportsNo
Compliance & Regulations
Prop 65No Warning
CARBNot CARB Approved
CARB Ack.Required
ActiveActive
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