Adjustable K-Series K24 Idler Pulley Belt – EP3 EG DC2 RSX

K-Series Swap Adjustable EP3 Idler Pulley Belt Kit – Honda Civic & Acura Integra

Eliminate belt tension guesswork on your K-series swap with the MadDogPerformance Adjustable EP3 Idler Pulley Kit — engineered specifically for builders who demand precision on K20 and K24 setups.

The Problem It Solves

The OEM Honda EP3 idler pulley is fixed — leaving swappers fighting over-tightened or loose accessory belts with no clean solution. Our adjustable kit puts belt tension back in your hands.

Why Choose This Kit

• Manual adjustment lets you dial in the perfect accessory belt tension every time
• K24/K20 mixed combos benefit most — no more compromising on belt length due to parts mixing
• A/C compatible — unlike relocator kits, this allows you to retain your A/C system if desired
• Includes correct-length belt to delete A/C as a default configuration
• No need to run a smaller K20 crank pulley just to correct belt length on swaps like the 06–09 Civic K24

Fitment

• Fits ALL K20 Engines / ALL K20 Heads
• Compatible with: Honda Civic (EP3, EG, EK) | Acura Integra (DC2) | Acura RSX