239818 Piston Spiral Lock Circlip
incl. VAT
Chapter members save 15% · Sign in for member pricing
Estimated delivery: 3–15 working days
Authorised
Iron City Dealer
14-Day Returns
Easy & hassle-free
Secure Checkout
256-bit encryption
Free UK Delivery
On orders over £100
Specifications
- Brand
- KB Keith Black Performance Motorcycle Pistons
- Part Number
- 239818
- OEM Reference
- —
- Application
- KB Piston spiral lock circlip (each)
- Pack Quantity
- Each
- Category
- Piston Rings
- VAT Rate
- 20%
About This Product
KB spiral lock circlip for piston pins. The spiral design gives full 360-degree contact in the groove. It stops the pin from walking out and scoring the bore. These suit forged 4032 alloy pistons in high-compression or nitrous-assisted street and race applications. They handle the heat expansion and mechanical stress of high-RPM running. One circlip secures the wrist pin to the piston and rod. Essential hardware when you are building the top end.
Manufacturer's description
These pistons are made from forged 4032 alloy that has an 11% silicon content. Pistons are formed in a forging press an then fully machined. the combination of this alloy and forging process allows the piston to flex under detonation or pre-ignition, giving the best resistance to cracking. Since 4032 alloy has a low expansion rate but higher than the Keith Black Hypereutectic pistons, it will require a .001" wider piston to wall clearance. Keith Black forged alloy pistons are suited for High Performance street and race applications including high compression and NOS equipped bikes. All pistons come with a set of Hastings piston rings, piston pins and spiral piston lock rings.
Planning other changes? Find your model in the bike customiser.
Related Products
View all →
Hastings
PISTON RING SETS
Wiseco
FORGED PISTON KITS FOR KNUCKLEHEAD, PANHEAD AND SHOVELHEAD
Wiseco
1200 CC BIG BORE PISTON KITS FOR 883 EVOLUTION SPORTSTER
Wiseco
PISTON RINGS FOR WISECO PISTONS
Wiseco
PISTON RINGS FOR WISECO PISTONS
Wiseco
PISTON RINGS FOR WISECO PISTONS
Wiseco
REPLACEMENT CIRCLIPS FOR WISECO PISTONS
Wiseco
REPLACEMENT CIRCLIPS FOR WISECO PISTONS
More from KB Keith Black Performance Motorcycle Pistons
View all →
CYLINDERS FOR TWIN CAM 1999-2017
KEITH BLACK FORGED ALLOY PISTONS
KEITH BLACK FORGED ALLOY PISTONS
KEITH BLACK FORGED ALLOY PISTONS
KEITH BLACK FORGED ALLOY PISTONS
KEITH BLACK FORGED ALLOY PISTONS
KEITH BLACK FORGED ALLOY PISTONS
KEITH BLACK FORGED ALLOY PISTONS
Who are we? Leeds Harley-Davidson - Iron City Motorcycles
This product is fulfilled by Iron City Motorcycles, Leeds' authorised Harley-Davidson® dealer, serving the UK with a full range of Genuine Motorclothes®, dealer merchandise, and official Harley-Davidson parts & accessories — available for UK and international delivery.
From OEM Parts to retro lifestyle wear to aftermarket stockits we have what you need to keep you riding all year round.
Use our official OEM parts finder to browse our full Genuine Harley-Davidson® Parts and our associated approved aftermarket catalogues.