MR. GASKET
Mr. Gasket Gaskets, Seals, and Performance Parts at JJ Motorsports
Mr. Gasket, founded in 1964 by Joe Hrudka in Cleveland, Ohio, began as a venture to produce innovative gaskets for high-performance engines. Using his own '57 Chevy as a test bed, Hrudka—along with his brother Tom—launched the company, drawing from their background as drag racers. Over the decades, Mr. Gasket has become a legendary brand in the automotive accessories market, known for quality products that enhance engine performance and reliability for hot rodders, racers, and enthusiasts worldwide.
At JJ Motorsports, we stock a variety of Mr. Gasket products designed for engine sealing and performance upgrades. For reliable gasket solutions, check out the Valve Cover Gaskets or the Head Gaskets. Enhance your build with items like the Oil Pan Gaskets or performance accessories such as the Timing Covers. Whether you're rebuilding an engine or fine-tuning for the track, Mr. Gasket provides trusted options compatible with various automotive applications. Explore our selection to find the ideal upgrades for your vehicle.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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Mr. Gasket Top Dead Center (TDC) Whistle 8016MRG
MR. GASKET
$35.37Finding true top dead center on your engine is critical for accurate ignition timing, valve overlap measurements, and engine assembly—and guesswork has no place in precision machine work. The Mr...MRG8016MRG- SKU:
- MRG8016MRG
- Availability:
- Ships Same Business Day
- Weight:
- 0.39 LBS
$35.37 -
Mr. Gasket Alignment Tool - GM LS Timing Cover w/Seal LSTC2
MR. GASKET
$58.15Proper timing cover alignment is critical when assembling or rebuilding your LS engine—misalignment can lead to seal leaks, oil weeping, and compromised engine integrity. The Mr. Gasket Alignment...MRGLSTC2- SKU:
- MRGLSTC2
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
$58.15 -
Mr. Gasket Alignment Tool - GM LS Timing Cover wo/Seal LSTC1
MR. GASKET
$64.55Precision timing cover installation on LS-series engines demands exact alignment—even minor deviations can result in oil leaks, timing issues, or costly rework. The Mr. Gasket Alignment Tool...MRGLSTC1- SKU:
- MRGLSTC1
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
$64.55 -
Mr. Gasket Alignment Tool - GM LS Rear Block Cover LSRC1
MR. GASKET
$77.55Installing an LS rear cover without proper alignment is a recipe for oil leaks and misalignment headaches. The Mr. Gasket Alignment Tool ensures your rear block cover sits perfectly flush every time,...MRGLSRC1- SKU:
- MRGLSRC1
- Availability:
- Ships Same Business Day
- Weight:
- 0.63 LBS
$77.55 -
Mr. Gasket Header Bolt Set (12pk) GM LS1 8mm 918G
MR. GASKET
$9.80Header bolts endure extreme thermal cycling and vibration—stock fasteners can loosen, crack, or corrode, leading to exhaust leaks and lost performance. Mr. Gasket's 8mm header bolt set delivers the...MRG918G- SKU:
- MRG918G
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
$9.80 -
Mr. Gasket Fuel Transfer Pump Battery Operated 8000MRG
MR. GASKET
$101.95Getting fuel from jerry cans to your vehicle—or between tanks during endurance racing—demands a reliable, portable solution. The Mr. Gasket 8000MRG eliminates the mess and labor of manual transfer...MRG8000MRG- SKU:
- MRG8000MRG
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
$101.95 -
Mr. Gasket Exhaust Header Gskt Set GM LS1-LS7 Round 7406G
MR. GASKET
$29.36A quality exhaust header gasket set is critical to preventing exhaust leaks that kill power and waste fuel—especially in high-heat LS engine applications where thermal stress demands precision...MRG7406G- SKU:
- MRG7406G
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
$29.36 -
Mr. Gasket Thermostat 180 Degree GM LS1 6368
MR. GASKET
$37.66Maintaining precise coolant temperature is critical for LS1 engine reliability and performance, especially under sustained high-rpm operation or track conditions. An undersized or failing thermostat...MRG6368- SKU:
- MRG6368
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$37.66 -
Mr. Gasket Oil Pan Bolt Set - GM LS Engines S/S 60850G
MR. GASKET
$34.96Stock oil pan bolts are prone to loosening under high engine loads and vibration, compromising your oil seal integrity and risking catastrophic leaks. Mr. Gasket's hex head bolt set delivers secure,...MRG60850G- SKU:
- MRG60850G
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
$34.96 -
Mr. Gasket Exhaust Gasket GM LS 2/LS3 5966
MR. GASKET
$51.19A failing exhaust gasket compromises header sealing, causing exhaust leaks that rob your LS engine of power and precision while introducing unwanted noise. Mr. Gasket's Ultra-Seal construction uses a...MRG5966- SKU:
- MRG5966
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
$51.19 -
Mr. Gasket GM LS1 Header Gaskets 5964
MR. GASKET
$47.28A failing header gasket is a silent performance killer—exhaust leaks rob your LS1 of power, create unwanted noise, and allow heat to escape where it shouldn't. The Mr. Gasket Ultra-Seal design uses a...MRG5964- SKU:
- MRG5964
- Availability:
- Ships Same Business Day
- Weight:
- 0.29 LBS
$47.28 -
Mr. Gasket SBC Valve Cover Gasket Set 585G
MR. GASKET
$34.72A leaking valve cover gasket compromises engine performance and creates a mess in your engine bay. Mr. Gasket's steel core silicone design seals reliably under high heat and vibration, eliminating...MRG585G- SKU:
- MRG585G
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
$34.72 -
Mr. Gasket Water Neck - Swivel Style GM LS 97-Up Black 2670BK
MR. GASKET
$51.19A quality water neck is critical to maintaining proper coolant flow and preventing air pockets in your LS engine's cooling system. The Mr. Gasket swivel design allows for flexible hose routing,...MRG2670BK- SKU:
- MRG2670BK
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
$51.19 -
Mr. Gasket Water Neck GM LS Swivel Style 97-Up 2670
MR. GASKET
$64.65A quality water neck is critical for maintaining proper coolant flow and preventing hot spots in your LS engine bay—especially under sustained high-rpm operation or forced induction. The Mr. Gasket...MRG2670- SKU:
- MRG2670
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
$64.65 -
Mr. Gasket 4 Deg Short (3/4in) Crank key 988G
MR. GASKET
$35.59A properly functioning crankshaft key is critical for maintaining timing accuracy and preventing harmonic imbalances that can lead to catastrophic engine failure. This Mr. Gasket 4-degree offset key...MRG988G- SKU:
- MRG988G
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MFG Part #:
- 988G
$35.59 -
Mr. Gasket 2 Deg Short (3/4in) Crank Key 987G
MR. GASKET
$35.59A crankshaft key is a critical component that locks your harmonic balancer and pulley system to the crank, preventing slippage under high RPM and boost conditions. Mr. Gasket's 2-degree offset design...MRG987G- SKU:
- MRG987G
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- MFG Part #:
- 987G
$35.59 -
Mr. Gasket Short (3/4in) Crank Key 984G
MR. GASKET
$35.55A properly installed crankshaft key is fundamental to reliable engine operation—it locks your crankshaft pulley in place and prevents timing drift under high load conditions. The Mr. Gasket 984G...MRG984G- SKU:
- MRG984G
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MFG Part #:
- 984G
$35.55Qty in Cart: 0Quantity:Price:$35.55Subtotal: -
Mr. Gasket Long (1-3/8in) Crank Key 983G
MR. GASKET
$35.59A properly secured crankshaft key is critical for reliable engine performance, especially in high-RPM applications where harmonic forces can cause pulley slippage and ignition timing issues. The Mr...MRG983G- SKU:
- MRG983G
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- MFG Part #:
- 983G
$35.59 -
Mr. Gasket Blk Deluxe Wire Loom Kit 9728
MR. GASKET
$7.70A clean engine bay isn't just for show—organized spark plug wires reduce heat transfer to nearby components and make future maintenance and diagnostics significantly easier. The Mr. Gasket Blk Deluxe...MRG9728- SKU:
- MRG9728
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- MFG Part #:
- 9728
$7.70 -
Mr. Gasket Sb Chevy Intake Bolts 955G
MR. GASKET
$18.04A properly secured intake manifold is critical to maintaining consistent fuel delivery and preventing vacuum leaks that rob your engine of power and reliability. Mr. Gasket's intake bolt kit...MRG955G- SKU:
- MRG955G
- Availability:
- Ships Same Business Day
- Weight:
- 0.58 LBS
- MFG Part #:
- 955G
$18.04 -
Mr. Gasket SBC Cam Bolt Lock Plt Ki 948G
MR. GASKET
$21.32Camshaft timing integrity is non-negotiable in high-performance engine builds, and a secure locking plate is your first line of defense against unwanted cam walk during aggressive driving or high-RPM...MRG948G- SKU:
- MRG948G
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- MFG Part #:
- 948G
$21.32Qty in Cart: 0Quantity:Price:$21.32Subtotal: -
Mr. Gasket Harmonic Balancer Bolt 945G
MR. GASKET
$10.05A properly secured harmonic balancer is critical to engine stability and longevity—any slippage or fastener failure can cause timing issues and internal damage. This Mr. Gasket bolt is engineered...MRG945G- SKU:
- MRG945G
- Availability:
- Ships Same Business Day
- Weight:
- 0.37 LBS
- MFG Part #:
- 945G
$10.05 -
Mr. Gasket H.E.I. Adv Curve Kit 929G
MR. GASKET
$10.93Fine-tuning ignition timing across your engine's RPM range is critical for extracting maximum horsepower and maintaining reliability under load. The Mr. Gasket H.E.I. Advanced Curve Kit gives you...MRG929G- SKU:
- MRG929G
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- MFG Part #:
- 929G
$10.93 -
Mr. Gasket Aluminum Rocker Nuts 923G
MR. GASKET
$101.95Rocker arm nuts are critical fastening components that secure your rocker arms under extreme valve train stress—loose or failing nuts can cause valve timing issues and catastrophic engine damage. Mr...MRG923G- SKU:
- MRG923G
- Availability:
- Ships Same Business Day
- Weight:
- 0.79 LBS
- MFG Part #:
- 923G
$101.95 -
Mr. Gasket Rocker Arm Nuts 920G
MR. GASKET
$49.17Rocker arm nuts are critical fastening points in your valvetrain—loose or worn nuts will cause valve float, timing issues, and potential catastrophic engine damage. The Mr. Gasket 920G set delivers...MRG920G- SKU:
- MRG920G
- Availability:
- Ships Same Business Day
- Weight:
- 1.13 LBS
- MFG Part #:
- 920G
$49.17 -
Mr. Gasket Header Bolts 16 Per Set 919G
MR. GASKET
$19.33Header bolts take tremendous heat and vibration in high-performance applications—factory fasteners often loosen or fail under sustained load. Mr. Gasket's 919G set delivers OEM-quality fasteners...MRG919G- SKU:
- MRG919G
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- MFG Part #:
- 919G
$19.33 -
Mr. Gasket Header Bolts 917
MR. GASKET
$18.77Header bolts are a critical fastening component that directly impacts exhaust system integrity and engine reliability. Mr. Gasket's 917 bolts are precision-engineered with black oxide coating to...MRG917- SKU:
- MRG917
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
- MFG Part #:
- 917
$18.77 -
Mr. Gasket Header Bolts 915
MR. GASKET
$9.15Header bolts are a critical fastening component that endures extreme heat cycles and vibration in high-performance applications. OEM fasteners often fail under sustained engine stress, leading to...MRG915- SKU:
- MRG915
- Availability:
- Ships Same Business Day
- Weight:
- 0.49 LBS
- MFG Part #:
- 915
$9.15 -
Mr. Gasket Flywheel Bolts 912
MR. GASKET
$18.77Flywheel bolts are critical fasteners that secure your flywheel to the crankshaft—failure here means catastrophic engine damage and downtime you can't afford. Mr. Gasket's 912 bolt kit provides the...MRG912- SKU:
- MRG912
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- MFG Part #:
- 912
$18.77 -
Mr. Gasket Pressure Plate Bolts 911
MR. GASKET
$12.57Pressure plate bolts are critical fasteners that secure your clutch assembly under extreme stress and rotational forces. Using OEM-equivalent or higher-grade bolts ensures your clutch engagement...MRG911- SKU:
- MRG911
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- MFG Part #:
- 911
$12.57 -
Mr. Gasket Pressure Plate Bolts 910
MR. GASKET
$12.63When you're trusting your clutch assembly to perform under racing conditions or high-torque applications, fastener quality matters just as much as the pressure plate itself. Mr. Gasket's Pressure...MRG910- SKU:
- MRG910
- Availability:
- Ships Same Business Day
- Weight:
- 0.33 LBS
- MFG Part #:
- 910
$12.63 -
Mr. Gasket Head Bolt Washers 7/16in 87
MR. GASKET
$26.33Proper head bolt washers are critical for distributing clamping force evenly across cylinder head surfaces, preventing bolt hole damage and ensuring consistent compression seal integrity. These Mr...MRG87- SKU:
- MRG87
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- MFG Part #:
- 87
$26.33 -
Mr. Gasket Cam Bushing Kit Chevy - Even # Bushings 85
MR. GASKET
$27.48Camshaft timing is critical to engine performance, and even small degree variations can significantly impact power delivery, fuel efficiency, and overall drivability. The Mr. Gasket Cam Bushing Kit...MRG85- SKU:
- MRG85
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MFG Part #:
- 85
$27.48 -
Mr. Gasket Differential Gasket GM 10 Bolt 8.5 84B
MR. GASKET
$21.32A worn or deteriorating differential gasket is a silent threat to your drivetrain—oil seepage leads to inadequate lubrication, accelerated wear on gears, and catastrophic failure at the worst...MRG84B- SKU:
- MRG84B
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- MFG Part #:
- 84B
$21.32 -
Mr. Gasket Differential Gasket Ford 9in 82
MR. GASKET
$25.60A worn or damaged differential gasket is a common source of fluid leaks that compromise gear lubrication and lead to costly drivetrain failure. The Mr. Gasket Ford 9-inch differential gasket provides...MRG82- SKU:
- MRG82
- Availability:
- Ships Same Business Day
- Weight:
- 0.24 LBS
- MFG Part #:
- 82
$25.60 -
Mr. Gasket Harmonic Balancer Bolt Ford 7847
MR. GASKET
$45.16The harmonic balancer is critical to engine stability—it absorbs vibrations from your crankshaft and protects your entire drivetrain from premature wear and failure. A factory or worn bolt can slip...MRG7847- SKU:
- MRG7847
- Availability:
- Ships Same Business Day
- Weight:
- 0.46 LBS
- MFG Part #:
- 7847
$45.16 -
Mr. Gasket SBC Harmonic Balancer Bolt 7845
MR. GASKET
$32.23The harmonic balancer is critical to engine stability and longevity—it absorbs crankshaft vibration that can lead to premature bearing wear and component failure. A quality fastener here isn't...MRG7845- SKU:
- MRG7845
- Availability:
- Ships Same Business Day
- Weight:
- 0.37 LBS
- MFG Part #:
- 7845
$32.23 -
Mr. Gasket Base Gasket .250in 758
MR. GASKET
$22.72A worn or damaged carburetor base gasket compromises fuel atomization and creates vacuum leaks that rob your engine of performance and efficiency. The Mr. Gasket 758 is a direct replacement composite...MRG758- SKU:
- MRG758
- Availability:
- Ships Same Business Day
- Weight:
- 0.29 LBS
- MFG Part #:
- 758
$22.72 -
Mr. Gasket Alum SBC Exhaust Gasket Round Port 7402G
MR. GASKET
$49.95A quality exhaust gasket is critical to maintaining cylinder head integrity and preventing exhaust leaks that rob horsepower and create unwanted noise. Mr. Gasket's aluminum construction provides...MRG7402G- SKU:
- MRG7402G
- Availability:
- Ships Same Business Day
- Weight:
- 0.52 LBS
- MFG Part #:
- 7402G
$49.95 -
Mr. Gasket Alum SBC Exhaust Gasket Square Port 7401G
MR. GASKET
$47.55A properly sealed exhaust manifold gasket is critical to maintaining peak engine performance and preventing exhaust leaks that compromise horsepower and fuel efficiency. Mr. Gasket's aluminum...MRG7401G- SKU:
- MRG7401G
- Availability:
- Ships Same Business Day
- Weight:
- 0.48 LBS
- MFG Part #:
- 7401G
$47.55
