Dirt Bike Engine
Dirt Bike Engine Parts at JJ Motorsports
Discover a full range of dirt bike engine components for rebuilding or upgrading your performance from JJ Motorsports. From crankshafts to cylinder heads and piston kits, these precision-engineered components ensure reliable performance. For additional upgrades, check out our full selection of off-road dirt bike parts to keep your engine running at peak efficiency on the track or trails.
Shop trusted brands like Wiseco for forged piston kits and K&N for high-flow oil filters. Explore related categories such as Dirt Bike Air and Fuel for intake upgrades or Dirt Bike Exhaust for complete systems.
Browse our in-stock inventory below with same-day shipping and expert support. Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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JAGG OIL COOLERS Universal 10-Row Oil Cooler 3120
JAGG OIL COOLERS
$239.95Engine oil temperature directly impacts power output, component longevity, and reliability under sustained high-performance driving. The JAGG Universal 10-Row Oil Cooler maintains optimal operating...07130210- SKU:
- 07130210
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- BASE COLOR:
- BLACK
- TYPE:
- 10-ROW
- MOUNTING POSITION:
- BOTTOM
- PRODUCT NAME:
- OIL COOLER
- BASE FINISH:
- POWDER-COATED
- MOUNTING STYLE:
- BOLT-ON
- RIDING STYLE:
- STREET
- STYLE:
- STRAIGHT
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- GLOSS
- UNITS:
- EACH
$239.95Qty in Cart: 0Quantity:Price:$239.95Subtotal: -
JAGG OIL COOLERS Universal 10-Row Oil Cooler 3130
JAGG OIL COOLERS
$239.95Jagg Universal Oil Cooler Cores are the very same oil coolers that are used in high-quality Jagg kits, These units are perfect for the customizer, the fabricator, and the racer, Supplied as oil...07130211- SKU:
- 07130211
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- BASE FINISH:
- POWDER-COATED
- COLOR/FINISH:
- GLOSS
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- BASE COLOR:
- BLACK
- TYPE:
- 10-ROW
- UNITS:
- EACH
- MOUNTING POSITION:
- BOTTOM
- MOUNTING STYLE:
- BOLT-ON
- PRODUCT NAME:
- OIL COOLER
- STYLE:
- 90°
$239.95Qty in Cart: 0Quantity:Price:$239.95Subtotal: -
JAGG OIL COOLERS Universal 10-Row Oil Cooler with Tabs 3150
JAGG OIL COOLERS
$239.95Jagg Universal Oil Cooler Cores are the very same oil coolers that are used in high-quality Jagg kits, These units are perfect for the customizer, the fabricator, and the racer, Supplied as oil...07130213- SKU:
- 07130213
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
- RIDING STYLE:
- STREET
- BASE FINISH:
- POWDER-COATED
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- GLOSS
- BASE COLOR:
- BLACK
- TYPE:
- 10-ROW
- UNITS:
- EACH
- MOUNTING POSITION:
- TOP
- MOUNTING STYLE:
- TABS
- PRODUCT NAME:
- OIL COOLER
- STYLE:
- STRAIGHT
$239.95Qty in Cart: 0Quantity:Price:$239.95Subtotal: -
JAGG OIL COOLERS Universal 10-Row Oil Cooler with Tabs 3160
JAGG OIL COOLERS
$239.95Engine oil temperature directly impacts performance, reliability, and longevity—especially under sustained track conditions or high-load driving. The JAGG 10-Row Oil Cooler delivers efficient thermal...07130214- SKU:
- 07130214
- Availability:
- Ships Same Business Day
- Weight:
- 1.55 LBS
- COLOR/FINISH:
- BLACK
- MOUNTING STYLE:
- TABS
- PRODUCT NAME:
- OIL COOLER
- STYLE:
- STRAIGHT
- BASE FINISH:
- POWDER-COATED
- COLOR/FINISH:
- GLOSS
- MOUNTING STYLE:
- BOLT-ON
- RIDING STYLE:
- STREET
- MOUNTING POSITION:
- TOP
- TYPE:
- 10-ROW
- UNITS:
- EACH
- BASE COLOR:
- BLACK
$239.95Qty in Cart: 0Quantity:Price:$239.95Subtotal: -
JAGG OIL COOLERS Manual By-Pass Valve Service Kit SK4000
JAGG OIL COOLERS
$5.95Service kit contains replacement o-rings, snap-ring retaining clip for manual by-pass knob, and a spare decal for the Jagg 4000 Manual By-pass Valve07130218- SKU:
- 07130218
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- UNITS:
- KIT
- PRODUCT NAME:
- BYPASS VALVE
- RIDING STYLE:
- STREET
- TYPE:
- MANUAL
$5.95Qty in Cart: 0Quantity:Price:$5.95Subtotal: -
JAGG OIL COOLERS 190 Degree Preset Thermal Switch TS190
JAGG OIL COOLERS
$27.95This bi-metal disc type thermostat installs directly into any 1/8" NPT port and provides an automatic switch to turn on 12V electric fan at the set temperature07130221- SKU:
- 07130221
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- STREET
- BASE COLOR:
- BLACK
- PRODUCT NAME:
- FAN SWITCH
- TYPE:
- AUTOMATIC
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- STYLE:
- 190°F
$27.95Qty in Cart: 0Quantity:Price:$27.95Subtotal: -
JAGG OIL COOLERS 200 Degree Preset Thermal Switch TS200
JAGG OIL COOLERS
$27.95This bi-metal disc type thermostat installs directly into any 1/8" NPT port and provides an automatic switch to turn on 12V electric fan at the set temperature07130222- SKU:
- 07130222
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- STYLE:
- 200°F
- TYPE:
- AUTOMATIC
- BASE COLOR:
- BLACK
- PRODUCT NAME:
- FAN SWITCH
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
$27.95Qty in Cart: 0Quantity:Price:$27.95Subtotal: -
JAGG OIL COOLERS Hose Finishers - Black - 4-Pack 22-JHF06-BK-4
JAGG OIL COOLERS
$25.95If you're running an oil cooling system, the terminal ends of your hose lines deserve the same attention as your engine bay's performance components. These JAGG hose finishers dress up push-on hose...07130232- SKU:
- 07130232
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MOUNTING STYLE:
- CLAMP
- UNITS:
- 4 PACK
- BASE COLOR:
- BLACK
- COLOR/FINISH:
- BLACK
- FOR FRAME TUBE DIAMETER IMPERIAL:
- 3/8'
- PRODUCT NAME:
- HOSE FINISHER
- MODEL:
- HIGH-PERFORMANCE
- RIDING STYLE:
- STREET
$25.95Qty in Cart: 0Quantity:Price:$25.95Subtotal: -
JAGG OIL COOLERS Hose Finishers - Silver - 4-Pack 22-JHF06-SL-4
JAGG OIL COOLERS
$25.95Oil cooler hoses don't have to look like plumbing—these hose finishers transform the terminal ends of your cooling lines into sleek compression-fitting aesthetics that match professional racecar...07130233- SKU:
- 07130233
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- BASE COLOR:
- SILVER
- FOR FRAME TUBE DIAMETER IMPERIAL:
- 3/8'
- MODEL:
- HIGH-PERFORMANCE
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- ANODIZED SILVER
- BASE FINISH:
- ANODIZED
- PRODUCT NAME:
- HOSE FINISHER
- MOUNTING STYLE:
- CLAMP
- UNITS:
- 4 PACK
$25.95Qty in Cart: 0Quantity:Price:$25.95Subtotal: -
JAGG OIL COOLERS Hose Separator - Black - 3/8" 22-JHS06-BK
JAGG OIL COOLERS
$10.95Oil cooler hose routing demands precision to prevent kinks, leaks, and heat damage to surrounding components. This billet aluminum separator keeps your 3/8" hoses organized and properly spaced,...07130234- SKU:
- 07130234
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MOUNTING STYLE:
- BOLT-ON
- PRODUCT NAME:
- HOSE SEPARATOR
- BASE COLOR:
- BLACK
- COLOR/FINISH:
- BLACK
- MATERIAL:
- BILLET ALUMINUM
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$10.95Qty in Cart: 0Quantity:Price:$10.95Subtotal: -
JAGG OIL COOLERS Frame Mount Clamp - 1" CL100
JAGG OIL COOLERS
$9.95Securing an oil cooler to your frame requires a mount that handles vibration without compromising cooler alignment—improper mounting can lead to hose fatigue and premature failure. The JAGG CL100...07130236- SKU:
- 07130236
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- BASE COLOR:
- BLACK
- MATERIAL:
- ALUMINUM
- MOUNTING STYLE:
- BOLT-ON
- RIDING STYLE:
- STREET
- FOR FRAME TUBE DIAMETER IMPERIAL:
- 1'
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- FRAME TUBE CLAMP
- UNITS:
- EACH
$9.95Qty in Cart: 0Quantity:Price:$9.95Subtotal: -
JAGG OIL COOLERS Frame Mount Clamp - 1-1/8" CL112
JAGG OIL COOLERS
$9.95Proper oil cooler mounting isn't just about securing a component—it's about protecting your engine from heat damage while keeping vibration from compromising your cooling system's integrity. The JAGG...07130237- SKU:
- 07130237
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- FRAME TUBE CLAMP
- UNITS:
- EACH
- BASE COLOR:
- BLACK
- FOR FRAME TUBE DIAMETER IMPERIAL:
- 1-1/8'
- MATERIAL:
- ALUMINUM
- MOUNTING STYLE:
- BOLT-ON
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
$9.95 -
JAGG OIL COOLERS Frame Mount Clamp - 1-1/4" CL125
JAGG OIL COOLERS
$9.95Proper oil cooler mounting is critical to maintaining consistent engine temperatures under sustained performance driving, and inadequate clamping can lead to vibration-induced failure or cooler...07130238- SKU:
- 07130238
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- BASE COLOR:
- BLACK
- MATERIAL:
- ALUMINUM
- MOUNTING STYLE:
- BOLT-ON
- RIDING STYLE:
- STREET
- FOR FRAME TUBE DIAMETER IMPERIAL:
- 1-1/4'
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- FRAME TUBE CLAMP
$9.95Qty in Cart: 0Quantity:Price:$9.95Subtotal: -
JAGG OIL COOLERS Frame Mount Clamp - 1-3/8" CL138
JAGG OIL COOLERS
$9.95A properly mounted oil cooler is critical to engine longevity under sustained high-performance driving—this clamp ensures your Jagg cooler stays secure while vibration isolation protects both the...07130239- SKU:
- 07130239
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- FRAME TUBE CLAMP
- UNITS:
- EACH
- MATERIAL:
- ALUMINUM
- MOUNTING STYLE:
- BOLT-ON
- RIDING STYLE:
- STREET
- FOR FRAME TUBE DIAMETER IMPERIAL:
- 1-3/8'
- BASE COLOR:
- BLACK
$9.95Qty in Cart: 0Quantity:Price:$9.95Subtotal: -
JAGG OIL COOLERS Frame Mount Clamp - 1-1/2" CL150
JAGG OIL COOLERS
$9.95Proper oil cooler mounting is critical for maintaining consistent fluid temperatures under sustained high-performance driving. This CNC-machined frame clamp delivers vibration isolation while...07130240- SKU:
- 07130240
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- COLOR/FINISH:
- BLACK
- FOR FRAME TUBE DIAMETER IMPERIAL:
- 1-1/2'
- PRODUCT NAME:
- FRAME TUBE CLAMP
- UNITS:
- EACH
- MATERIAL:
- ALUMINUM
- MOUNTING STYLE:
- BOLT-ON
- RIDING STYLE:
- STREET
- BASE COLOR:
- BLACK
$9.95Qty in Cart: 0Quantity:Price:$9.95Subtotal: -
JAGG OIL COOLERS Fiber Braided Hose - Black - 10' 21-JLWN06-10
JAGG OIL COOLERS
$60.95If you're running a JAGG oil cooler system, the factory hose setup doesn't have to look like an afterthought. This fiber-braided hose delivers the same reliability as your cooling system while giving...07130241- SKU:
- 07130241
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- BASE COLOR:
- BLACK
- FOR FRAME TUBE DIAMETER IMPERIAL:
- 3/8'
- MODEL:
- HIGH-PERFORMANCE
- RIDING STYLE:
- STREET
- MATERIAL:
- RUBBER
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- LENGTH IMPERIAL:
- 10'
- PRODUCT NAME:
- HOSE
- TYPE:
- BRAIDED
$60.95Qty in Cart: 0Quantity:Price:$60.95Subtotal: -
JAGG OIL COOLERS Fiber Braided Hose - Stainless Steel - 10' 21-JSSN06-10
JAGG OIL COOLERS
$60.95If you're running a Jagg oil cooler system, this fiber-braided hose upgrade delivers the durability and reliability your engine cooling demands while giving your bike the finished, professional...07130242- SKU:
- 07130242
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- LENGTH IMPERIAL:
- 10'
- PRODUCT NAME:
- HOSE
- TYPE:
- BRAIDED
- RIDING STYLE:
- STREET
- MATERIAL:
- RUBBER
- UNITS:
- EACH
- BASE FINISH:
- NATURAL
- COLOR/FINISH:
- STAINLESS STEEL
- FOR FRAME TUBE DIAMETER IMPERIAL:
- 3/8'
- MODEL:
- HIGH-PERFORMANCE
$60.95Qty in Cart: 0Quantity:Price:$60.95Subtotal: -
JAGG OIL COOLERS Manual By-Pass Valve 4000
JAGG OIL COOLERS
$79.95Cold-weather riding and extended warm-up periods demand precise oil temperature control—something your stock system simply can't deliver. The JAGG Manual By-Pass Valve 4000 puts that control directly...07130215- SKU:
- 07130215
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- TYPE:
- MANUAL
- PRODUCT NAME:
- BYPASS VALVE
- RIDING STYLE:
- STREET
- UNITS:
- KIT
$79.95Qty in Cart: 0Quantity:Price:$79.95Subtotal: -
JAGG OIL COOLERS Hose Separator - Silver - 3/8" 22-JHS06-SL
JAGG OIL COOLERS
$10.95Oil cooler hose routing requires precision—kinks, pinches, or improper separation can reduce cooling efficiency and compromise hose longevity. The JAGG Hose Separator keeps your oil lines properly...07130235- SKU:
- 07130235
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- BASE FINISH:
- CHROME
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- HOSE SEPARATOR
- UNITS:
- EACH
- MATERIAL:
- BILLET ALUMINUM
- MOUNTING STYLE:
- BOLT-ON
$10.95Qty in Cart: 0Quantity:Price:$10.95Subtotal: -
HOT RODS Seal Output Shaft OSK0011
HOT RODS
$29.95A leaking countershaft seal can compromise your transmission's integrity and lead to costly damage if left unaddressed. The HOT RODS Seal Output Shaft kit delivers everything you need to eliminate...09350577- SKU:
- 09350577
- Availability:
- Ships Same Business Day
- Weight:
- 0.14 LBS
- PRODUCT NAME:
- SEAL
- APPLICATION:
- COUNTERSHAFT
- APPLICATION:
- TRANSMISSION
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$29.95
