Skip to content
Oil caps, plugs, magnetic drain bolts, and filter covers for off-road bikes. CNC-machined, anodized, and built for performance. Fits Honda, Yamaha, KTM, Suzuki, Kawasaki, Husqvarna, GASGAS, and more. Drain bolts reduce wear; covers improve cooling.

Engine Caps, Covers and Bolts

A refined collection of engine oil caps, plugs, magnetic drain bolts, and oil filter covers designed for motocross, enduro, and off-road motorcycles. Engineered for performance, reliability, and visual detail, this collection is compatible with Honda, Yamaha, Kawasaki, Suzuki, KTM, Husqvarna, GASGAS, and other leading manufacturers.

Engine oil caps and plugs are CNC-machined from lightweight aluminum alloy and anodized in a variety of colors, including red, blue, green, and black. Each component is designed for a secure, leak-resistant seal, offering a balance of weight reduction, mechanical precision, and aesthetic appeal.

Magnetic drain bolts feature a press-fitted high-strength magnet to capture fine iron particles in the oil, helping to reduce engine wear. Available in M8 stainless steel and M10/M12 aluminum variants, each bolt includes a pre-drilled hole for safety wiring in high-vibration environments.

Also included are precision-engineered oil filter covers, CNC-machined from A7009-T6 aluminum and finished with colored anodizing. Integrated cooling fins assist with heat dissipation, offering improved thermal performance over OEM components—ideal for demanding off-road conditions.

Filters

Uni-flow Gas Vent Cap - Yellow

ZETA
Original price $14.30 - Original price $14.30
Original price
$14.30
$14.30 - $14.30
Current price $14.30

One-Way Ventilation: Features a hose with a built-in one-way valve to maintain proper tank ventilation while preventing gasoline backflow during a ...

View full details
Original price $14.30 - Original price $14.30
Original price
$14.30
$14.30 - $14.30
Current price $14.30

Motorcycle Master Cylinder Cap Nissin for Honda - Street

DAYTONA
Original price $42.80 - Original price $42.80
Original price
$42.80
$42.80 - $42.80
Current price $42.80

Premium Build: Precision-machined from solid aluminum with a double anodized finish for superior durability and sleek aesthetics. Tailored Compati...

View full details
Original price $42.80 - Original price $42.80
Original price
$42.80
$42.80 - $42.80
Current price $42.80

Motorcycle Master Cylinder Cap 54mm for Yamaha - Street

Posh Faith
Original price $45.70 - Original price $45.70
Original price
$45.70
$45.70 - $45.70
Current price $45.70

Premium Material: Crafted from precision-machined aluminum for outstanding durability and performance. Anodized Finish: Features a robust anodized ...

View full details
Original price $45.70 - Original price $45.70
Original price
$45.70
$45.70 - $45.70
Current price $45.70

Oil Filter Cover for CRF250R, CRF250RX (2018-2026)

ZETA
Original price $59.40 - Original price $59.40
Original price
$59.40
$59.40 - $59.40
Current price $59.40

Precision Machined: CNC-machined from high-strength A7009-T6 aluminum for durability and precision fit. Enhanced Cooling: Integrated fins impro...

View full details
Original price $59.40 - Original price $59.40
Original price
$59.40
$59.40 - $59.40
Current price $59.40

Oil Filter Cover for Yamaha Serow 250 Tricker XT250X (2004-2020)

ZETA
Original price $54.00 - Original price $54.00
Original price
$54.00
$54.00 - $54.00
Current price $54.00

Precision Machined: CNC-machined from lightweight A7009-T6 aluminum for strength and performance.Anodized Finish: Features a colored anodized coati...

View full details
Original price $54.00 - Original price $54.00
Original price
$54.00
$54.00 - $54.00
Current price $54.00

Engine Plug for Kawasaki KX250F KX450F KX250 KLX450R (2008-2019)

ZETA
Original price $21.70 - Original price $21.70
Original price
$21.70
$21.70 - $21.70
Current price $21.70

Precision Engineering: Made from high-quality aluminum alloy, precision-machined for a perfect fit and lightweight performance. Anodized Finish: Fe...

View full details
Original price $21.70 - Original price $21.70
Original price
$21.70
$21.70 - $21.70
Current price $21.70

Engine Plug for Honda CRF250R CRF450R CRF1100L Africa Twin Rebel 1100 XR250 (1995-2026)

ZETA
Original price $23.30 - Original price $23.30
Original price
$23.30
$23.30 - $23.30
Current price $23.30

Precision Engineering: Made from high-quality aluminum alloy, precision-machined for a perfect fit and lightweight performance. Anodized Finish: Fe...

View full details
Original price $23.30 - Original price $23.30
Original price
$23.30
$23.30 - $23.30
Current price $23.30

Magnetic Drain Bolt M14x1.25 for Suzuki GSX1300R Hayabusa GSX-R1000 GSX-S1000 V-Strom1000 V-Strom1050 (1999-2022) M14x1.25

ZETA
Original price $12.80 - Original price $12.80
Original price
$12.80
$12.80 - $12.80
Current price $12.80

Efficient Engine Protection: Features a powerful, press-fitted magnet at the tip to capture even the smallest iron particles in engine oil, helping...

View full details
Original price $12.80 - Original price $12.80
Original price
$12.80
$12.80 - $12.80
Current price $12.80

Magnetic Drain Bolt M12x1.25 for Suzuki DR-Z400S DR-Z400SM RM-Z250 SV650 V-Strom 650 (2000-2026)

ZETA
Original price $12.80 - Original price $12.80
Original price
$12.80
$12.80 - $12.80
Current price $12.80

Efficient Engine Protection: Features a powerful, press-fitted magnet at the tip to capture even the smallest iron particles in engine oil, helping...

View full details
Original price $12.80 - Original price $12.80
Original price
$12.80
$12.80 - $12.80
Current price $12.80

Magnetic Drain Bolt M10x1.5 for Kawasaki KLX450R KX450F (2006-2015)

ZETA
Original price $12.80 - Original price $12.80
Original price
$12.80
$12.80 - $12.80
Current price $12.80

Efficient Engine Protection: Features a powerful, press-fitted magnet at the tip to capture even the smallest iron particles in engine oil, helping...

View full details
Original price $12.80 - Original price $12.80
Original price
$12.80
$12.80 - $12.80
Current price $12.80

Engine Oil Filler Cap for Kawasaki KX250 KX250F KX450 KX450F KLX450R Husqvarna TC250 Suzuki RM-Z250 (2004-2025)

ZETA
Original price $14.90 - Original price $14.90
Original price
$14.90
$14.90 - $14.90
Current price $14.90

Minimalist Design: A sleek and simple filler cap without a knob, offering a clean and modern look for your motorcycle. Easy to Use: Designed for qu...

View full details
Original price $14.90 - Original price $14.90
Original price
$14.90
$14.90 - $14.90
Current price $14.90

Engine Oil Filler Cap for Suzuki RM-Z250 RM-Z450 RM85 V-Strom 650 V-Strom 1050 Yamaha Serow 250 Tricker XT250X (1994-2025)

ZETA
Original price $14.90 - Original price $14.90
Original price
$14.90
$14.90 - $14.90
Current price $14.90

Minimalist Design: A sleek and simple filler cap without a knob, offering a clean and modern look for your motorcycle. Easy to Use: Designed for qu...

View full details
Original price $14.90 - Original price $14.90
Original price
$14.90
$14.90 - $14.90
Current price $14.90

Motorcycle Engine Oil Cap M27xP3.0 – Yamaha

Daytona
Original price $18.80 - Original price $19.30
Original price
$18.80 - $19.30
$18.80 - $19.30
Current price $18.80

Durable Construction: Precision-machined from high-quality aluminum for strength and longevity, with a durable anodized finish to resist wear and c...

View full details
Original price $18.80 - Original price $19.30
Original price
$18.80 - $19.30
$18.80 - $19.30
Current price $18.80

Motorcycle Engine Oil Cap M27xP1.5 – Yamaha

Daytona
Original price $18.80 - Original price $19.30
Original price
$18.80 - $19.30
$18.80 - $19.30
Current price $18.80

Durable Construction: Precision-machined from high-quality aluminum for strength and longevity, with a durable anodized finish to resist wear and c...

View full details
Original price $18.80 - Original price $19.30
Original price
$18.80 - $19.30
$18.80 - $19.30
Current price $18.80
Shipping’s On Us

Shipping’s On Us

Enjoy free shipping on all U.S. orders