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Tillotson Standard Volume (Single Stack, Gas) .004
237-214 Tillotson .004 Gas Fuel Pump Diaphragm
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Tillotson Standard Volume (Single Stack, Gas) .004" Fuel Pump Diaphragm

Part Number: 237-214
Online Price: $2.42
Tillotson 237-214 Standard Volume .004" Fuel Pump Diaphragm for Small Engines
Availability: In Stock.

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Description

Tillotson 237-214 Standard Volume .004" Fuel Pump Diaphragm – Single Stack, Gas


Optimize fuel delivery in small engines with the Tillotson 237-214 Standard Volume Fuel Pump Diaphragm. This premium .004" thick diaphragm is a thinner, high-performance alternative to the 237-141 model, specially engineered for smaller engines up to 60cc.


Known as the “snake skin” diaphragm for its distinctive tan silk weave laminated with durable Polytetrafluoroethylene (PTFE), this fuel pump diaphragm stands out from standard clear Mylar or main metering diaphragms. Its unique design ensures stronger pumping action, compensating for the lower vacuum or pulse typical of small displacement engines.


Key Features:

  • Thin .004" construction for enhanced fuel pumping power
  • Ideal for engines 60cc or smaller
  • Durable PTFE-laminated silk weave (“snake skin”) for reliable performance
  • Designed to maximize fuel delivery in small gas-powered engines
  • Recommended for frequent replacement (every race day) to maintain peak performance


While the thinner design pumps fuel harder, it naturally has a shorter lifespan in larger engines. This makes it an excellent choice for qualifying runs for fine-tuning 100cc and larger 2-cycle engines where maximizing fuel delivery is crucial.


Maintain your engine’s performance by replacing this diaphragm regularly—never exceeding three race days between changes—to ensure optimal fuel flow and race-ready power.

FAQ

Q1: What engines is the Tillotson 237-214 fuel pump diaphragm compatible with?
A1: The Tillotson 237-214 diaphragm is ideal for small gas engines up to 60cc, and it’s also effective for tuning larger 2-cycle engines like 100cc models during qualifying or tuning runs.


Q2: Why is the Tillotson 237-214 called the “snake skin” diaphragm?
A2: It’s nicknamed the “snake skin” because of its unique tan silk weave laminated with PTFE, which resembles snake skin and differentiates it from clear Mylar or other diaphragms.


Q3: How often should I replace this fuel pump diaphragm?
A3: For optimal performance, replace the diaphragm every race day and do not exceed three race days between changes to maintain peak fuel delivery.


Q4: What is the benefit of the .004" thickness?
A4: The thinner .004" diaphragm allows for stronger pumping action, compensating for the lower vacuum or pulse in small displacement engines, resulting in improved fuel delivery.


Q5: Does the thinner diaphragm last as long as the thicker models?
A5: No, the thinner design pumps fuel harder but has a shorter lifespan. It’s best suited for short-term use like qualifying runs or tuning, where maximum fuel delivery is essential.

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