Remember that split-second lag when you floor it, leaving you a half-car behind at the light? That's a worn accelerator pump diaphragm talking. The Holley 135-10 steps in as the exact replacement, pumping fuel with precision so your engine snaps to life without stumble or hesitation.
Holley's been fueling wins since the early 1900s—from NASCAR monsters to NHRA pro stocks. Their carburetors, like the iconic 4150 and 4160 series, demand spot-on maintenance. This black neoprene diaphragm handles the grunt work in the accelerator pump circuit, flexing reliably under heat and pressure to squirt just the right fuel shot for off-idle punch.
It's not fancy, but ignore it and your carb's toast. Cracked or stiff diaphragms cause flat spots, poor starts, and wasted runs. Pop in the 135-10, and feel the difference: smoother pulls from idle, crisper shifts, and that addictive surge of power.
Picture wrenching on your '69 Camaro over the weekend. Clean the carb bowls, inspect the pump well, then drop in this OEM diaphragm—installs in minutes with basic tools. No more guessing with cheap knockoffs that swell or tear after a season. Racers swear by Holley parts for marine outboards too, where vibration and saltwater test every seal.
Street strollers, bracket racers, or LS-swapped sleepers all benefit. It ensures consistent metering whether you're tuning for 93 octane pump gas or race fuel. Pair it with Holley's fuel pumps or manifolds for a dialed system that edges out the pack.
Grab the 135-10 diaphragm and quit chasing gremlins. Your carb will thank you with every rev-matched downshift or burnout launch. Simple fix, massive payoff—order yours and hit the road running.
