Description
Davco 380134 6" Vent Cap Fuel Filter Wrench — Heavy-Duty Diesel Service Tool
Changing the fuel filter on a Detroit Diesel or Cummins engine? You need a wrench that can handle the vent cap on your Davco Fuel Pro housing without slipping or damaging the plastic collar. This 6-inch 380134 vent cap wrench is purpose-built for diesel technicians and fleet maintenance crews who service Davco Fuel Pro 380 and 382 series fuel processors daily.
Fits These Fuel Processors
- Davco Fuel Pro 380 — Detroit Diesel Series 60, DD13, DD15
- Davco Fuel Pro 382 — Cummins ISX, ISM, ISL, ISC
- Paccar MX-13 engines with Davco 380/382 housing
- Kenworth, Peterbilt, Freightliner trucks with factory Davco systems
- Any 6-inch vent cap / collar on diesel fuel-water separators
Why You Need a Proper Vent Cap Wrench
The vent cap on a Davco fuel processor is under constant vibration and heat cycling. Over time, it seizes tight. Using channel locks or a strap wrench risks cracking the plastic cap or rounding off the collar — a $50+ replacement and hours of downtime. This wrench is laser-cut from 3mm steel with precise 6-inch inner diameter to engage all collar tabs evenly, distributing torque without point-load cracking.
Key Features
-
6" Inner Diameter — exact fit for Davco 380134 and 382 vent caps
-
Rubber Non-Slip Coated Handle — wet/diesel-soaked grip stays secure
-
3mm Heavy-Gauge Steel — won't flex or spread under torque
-
Replaces OEM: 380134, 382, 61110, 550244
- Rust-Resistant Black Oxide Finish
Replacement Cross-Reference
| Part Number |
Application |
| 380134 |
Davco Fuel Pro 380/382 vent cap |
| 382 |
Davco collar wrench (alternative PN) |
| 61110 |
Paccar/Kenworth/Peterbilt equivalent |
| 550244 |
Detroit Diesel OEM tool |
How to Use the 6" Vent Cap Wrench
- Locate the Davco fuel processor on the driver-side frame rail
- Clean debris from around the vent cap collar
- Slide the wrench over the cap, engaging all tabs
- Turn counterclockwise to loosen (standard thread)
- After filter replacement, hand-tighten + 1/4 turn — do not over-torque
Built for Shop & Road Service
Whether you're in a fleet bay doing PM services or on a roadside call, this wrench earns its place in your top drawer. The rubber-coated handle won't slip with diesel on your gloves, and the 6-inch opening clears even the tightest frame-rail clearances on Cascadia and T680 chassis.
FAQs
Will this fit my Davco Fuel Pro 382?
Yes — the 380134 wrench fits both Fuel Pro 380 and 382 models. The vent cap collar diameter is identical across both series.
Does it work on Detroit DD15 engines?
Yes. The DD13 and DD15 use the Davco Fuel Pro 382 as standard equipment. This wrench fits the vent cap perfectly.
Is the rubber grip diesel-resistant?
Yes. The rubber coating is formulated to resist diesel fuel, engine oil, and common shop solvents. It maintains grip even when wet.
Can I use this on a Cummins ISX?
Absolutely. Cummins ISX, ISM, and ISL engines with the Davco 380/382 fuel processor use the same 6-inch vent cap. This wrench is the correct tool.
What's the difference between 380134 and 61110?
Same tool, different part numbering system. 380134 is the Davco PN; 61110 is the Paccar/Kenworth inventory number. Both fit identically.
