Direct replacement derby cover for OEM primaries; race-inspired design improves heat dissipation. Hardware and gasket included. Made in the USA.
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PERFORMANCE MACHINE (PM)
Race Series Derby Cover — Black Ops™, Machined
€184.10
Regular price
€231.45
PERFORMANCE MACHINE (PM)
Race Series Derby Cover — Machined, Black Ops finish
Race Series Derby Cover with race-inspired design, improved heat dissipation, machined logo; hardware and gasket included. Made in the USA.
€155.07
Regular price
€209.92
PERFORMANCE MACHINE (PM)
Transmission Top Cover — Black Ops finish, Race Series
Precision CNC-machined replacement for the OEM transmission top cover. Easy bolt-on installation with included hardware. Race-inspired design improves heat dissipation.
€186.09
Regular price
€251.95
PERFORMANCE MACHINE (PM)
Rocker Box Covers — Machined finish, Race Series
Direct replacements for OEM covers; includes all hardware and gaskets. Race-inspired design improves heat dissipation. Sold in pairs; made in the U.S.A.
€687.20
Regular price
€863.91
WISECO
Replacement Ring Set — Bore 3.198", Oversize +0.010", X-Ring
Includes rings for one piston. Fits pistons of the same design only.
€29.22
Regular price
€39.54
WISECO
Replacement Ring Set — 3.1875" bore, +0.020" oversize, X-Ring
Rings for one piston; install on a matching piston for correct fit.
€29.22
Regular price
€39.54
WISECO
Replacement Ring Set — 3.218" bore, +0.030" oversize, X-Ring
Includes rings for one piston only. Fits only Wiseco pistons.
€29.22
Regular price
€39.54
WISECO
Replacement Ring Set — 3.447" bore, +0.010" oversize, X-Ring
Replacement rings for a single piston. Confirm piston compatibility before installation.
€29.22
Regular price
€39.54
WISECO
Replacement Ring Set — Bore 3.437", Oversize +0.040", X-Ring
Includes rings for one piston only. Fits matching pistons from the same manufacturer.
€29.22
Regular price
€39.54
WISECO
High-Performance Piston Kit — +0.040" oversize, 3.228" bore,...
Forged high-silicon aluminum piston kit including rings, retainer clips and chrome piston pins for reliable top-end rebuilds.
€216.00
Regular price
€292.34
WISECO
High-Performance Piston Kit — Bore 3.447", Compression Ratio...
Forged high-silicon aluminum piston kit with X-ring package, rings, chrome pins and retainer clips; made in the USA.
€216.00
Regular price
€292.34
WISECO
High-Performance Piston Kit — 3.495" piston, 4.25" stroke,...
Complete top-end kit with forged pistons, rings, pins and X-Ring package for reliable rebuilds.
€239.99
Regular price
€324.81
WISECO
High-Performance Piston Kit — Bore 3.537\", Stroke 4.25\",...
Forged high-silicon aluminum pistons; complete rebuild kit with X‑Ring set and hardware.
€239.99
Regular price
€324.81
WISECO
High-Performance Replacement Wrist Pin — 55.9 mm length, 20 mm...
High-performance wrist pin designed for improved strength and reduced thermal expansion.
€16.10
Regular price
€21.79
WISECO
High-Performance Replacement Wrist Pin — 70 mm length, 20 mm...
Precision replacement wrist pin engineered for high-stress engine use, offering improved strength and thermal stability.
€16.10
Regular price
€21.79
WISECO
High-Performance Replacement Ring Set — Bore 3.875",...
Includes rings for one piston only; fits only matching pistons from the same manufacturer.
€34.35
Regular price
€46.49