Tp Engineering
TP Engineering manufactures high-performance Harley-Davidson engine components, including oil pump assemblies, rocker arms, compression releases and top-end gasket kits for Big Twin, Evo and Twin Cam engines. The brand is widely searched for Harley oil pump upgrades, Twin Cam gasket kits and performance rocker arms because of its precision-engineered V-twin performance parts.
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Out of stock
Tp Engineering - 45-4022-23 - Compression Release Brass with Brass Cap
Tp Engineering
$49.95Tp Engineering - 45-4022-23 - Compression Release Brass with Brass CapFeaturesManufactured from 303 stainless steelAvailable with billet aluminum cap, brass cap or threaded to accept any standard...$49.95 -
Out of stock
Tp Engineering - 45-4021-21 - Custom Manual Compression Release with Threaded End for Valve Stem Cap
Tp Engineering
$34.95Tp Engineering - 45-4021-21 - Custom Manual Compression Release with Threaded End for Valve Stem CapFeaturesManufactured from 303 stainless steelAvailable with billet aluminum cap, brass cap or...$34.95 -
Out of stock
Tp Engineering - 45-4020-21 - Manual Compression Release with Billet Cap
Tp Engineering
$34.95Tp Engineering - 45-4020-21 - Manual Compression Release with Billet CapFeaturesManufactured from 303 stainless steelAvailable with billet aluminum cap, brass cap or threaded to accept any standard...$34.95 -
Out of stock
Tp Engineering - 45-7102-23 - Rocker Box Gasket Kit - Evo
Tp Engineering
$55.95Tp Engineering - 45-7102-23 - Rocker Box Gasket Kit - EvoFeaturesDesigned only for TP Rocker boxes.Made in the U.S.A.SpecsProduct NameGasket KitTypeRocker BoxUnitsKitModelPro SeriesRiding StyleStreet$55.95 -
Out of stock
Tp Engineering - 45-7101-23 - Rocker Box Gasket Kit - Twin Cam
Tp Engineering
$55.95Tp Engineering - 45-7101-23 - Rocker Box Gasket Kit - Twin CamFeaturesDesigned only for TP Rocker boxes.Made in the U.S.A.SpecsProduct NameGasket KitUnitsKitRiding StyleStreetTypeRocker BoxModelPro...$55.95 -
Out of stock
Tp Engineering - 45-0245-23 - Pro Series Rocker Arms
Tp Engineering
$732.95Tp Engineering - 45-0245-23 - Pro Series Rocker ArmsFeaturesPremium rocker arms are forged from 4140 steel and CNC-machined for a perfect fitFeature a roller tip for less drag and a solid bushing for...$732.95 -
Out of stock
Tp Engineering - 45-0151-12 - Oil Pump Big Twin
Tp Engineering
$524.95Tp Engineering - 45-0151-12 - Oil Pump Big TwinFeaturesConstructed of high-quality billet aluminum with a polished finishUnique three-valve system delivers 8-10 lb. of oil pressure to the crankshaft...$524.95 -
Out of stock
Tp Engineering - 45-0150-12 - Oil Pump Big Twin
Tp Engineering
$524.95Tp Engineering - 45-0150-12 - Oil Pump Big TwinFeaturesConstructed of high-quality billet aluminum with a polished finishUnique three-valve system delivers 8-10 lb. of oil pressure to the crankshaft...$524.95 -
Out of stock
Tp Engineering - 45-7412-10 - Top End Gasket Kit - 4-1/8"
Tp Engineering
$156.95Tp Engineering - 45-7412-10 - Top End Gasket Kit - 4-1/8"FeaturesGasket sets unique to TP motors; no other gasket set has all the gaskets to rebuild a TP motorLower end gasket sets include gaskets...$156.95 -
Out of stock
Tp Engineering - 45-7402-10 - Top End Gasket Kit - 4.00"
Tp Engineering
$142.95Tp Engineering - 45-7402-10 - Top End Gasket Kit - 4.00"FeaturesGasket sets unique to TP motors; no other gasket set has all the gaskets to rebuild a TP motorLower end gasket sets include gaskets and...$142.95 -
Out of stock
Tp Engineering - 45-7411-10 - Bottom End Gasket Kit - 4-1/8"
Tp Engineering
$84.95Tp Engineering - 45-7411-10 - Bottom End Gasket Kit - 4-1/8"FeaturesGasket sets unique to TP motors; no other gasket set has all the gaskets to rebuild a TP motorLower end gasket sets include gaskets...$84.95 -
Out of stock
Tp Engineering - 45-7024-12 - Oil Pump Gasket Kit - EVO Big Twin
Tp Engineering
$24.95Tp Engineering - 45-7024-12 - Oil Pump Gasket Kit - EVO Big TwinFeaturesReplacement gasket kit includes cover gasket, body gasket, snap rings and keysSpecsProduct NameGasket KitRiding...$24.95 -
Out of stock
Tp Engineering - 45-7027-12 - Oil Pump Gasket Kit - Big Twin
Tp Engineering
$24.95Tp Engineering - 45-7027-12 - Oil Pump Gasket Kit - Big TwinFeaturesReplacement gasket kit includes cover gasket, body gasket, snap rings and keysSpecsProduct NameGasket...$24.95 -
Out of stock
Tp Engineering - 45-0154-12 - Oil Pump Assembly - Big Twin
Tp Engineering
$546.95Tp Engineering - 45-0154-12 - Oil Pump Assembly - Big TwinFeaturesFilter your oil before it enters your motorComplete with fittings that send oil to the filter before pumping it through your...$546.95
TP Engineering Harley Performance Systems – Motorcycle Oil Pumps, Rocker Arms, Gasket Kits & Compression Release Components
TP Engineering is a respected Harley-Davidson performance brand specializing in premium-quality engine components, oil system upgrades and top-end hardware for V-twin motorcycles. The brand is strongly associated with high-volume search terms such as Harley oil pump, Twin Cam rocker arms, manual compression release and Harley gasket kit, making it a trusted option for engine builders, performance tuners and motorcycle mechanics working on Big Twin and Evo engines.
The product lineup includes precision-machined components such as Pro Series Rocker Arms, Big Twin Oil Pump Assemblies and manual compression release systems designed to improve engine efficiency, lubrication and starting performance. Products like the 45-0154-12 Oil Pump Assembly, 45-0245-23 Pro Series Rocker Arms and custom compression releases are engineered for durability and high-performance Harley applications. These components are commonly searched under terms like Harley engine oil pump upgrade, performance rocker arm kit and motorcycle compression release valve.
TP Engineering also offers complete top-end, bottom-end and rocker box gasket kits for Twin Cam and Evo engines, helping riders maintain reliable engine sealing during rebuilds and performance upgrades. Riders searching for Harley top end gasket kit, Twin Cam engine rebuild parts and Big Twin oil system components frequently choose TP Engineering for its proven performance and precision manufacturing. The brand remains a popular choice for serious V-twin engine performance and reliability upgrades.