Faster Coupler Part Numbers: FFH, HNV, ANV & NV Size Guide
Faster part numbers have two parts: letters that tell you the style, then a number that tells you the size. Example: FFH08 = 1/2" flat face. Find the part number stamped on the metal body of your coupler and type it in the box below, or use the chart. No number? Measure it instead.
Free Coupler Size Finder
Enter your part number or a measurement:
We'll tell you the size and the Tractor Relief Tool™ that fits. Searches 1,450+ part numbers.
- ✓Use the number stamped on the metal body of the coupler, not the hose. Hose printing (SAE 100R2, PSI, W.P.) won't match.
- ✓No part number? Measure across the male end (the plug, not the female socket) and type it, like 24.5 mm or 0.96 in. See how to measure →
- ✓Dashes, spaces and capitals don't matter (FFH-08 = ffh08).
- ✓Can't read the whole number? Type the first few characters you can see.
Coupler styles in plain English
- Flat face (ISO 16028): the front end is flat. Most skid steers and newer loaders use these.
- Ag / Pioneer (ISO 5675): the most common style on farm tractors.
- 7241-A and 7241-B: two other tractor styles. They look a lot like ag couplers, but each one needs its own tool.
Not sure which you have? See photos and how to measure →
Faster Coupler Size Chart
| Letters | Style | Size numbers |
|---|---|---|
| FFH or FSH | Flat face | 04 = 1/4" 06 = 3/8" 08 = 1/2" 10 = 5/8" 16 = 1" |
| HNV | 7241-B | 14 = 1/4" 38 = 3/8" 12 = 1/2" 34 = 3/4" 1 = 1" |
| ANV | 7241-A | 38 = 3/8" 34 = 3/4" 1 = 1" |
| NV | Ag / Pioneer | 14 = 1/4" 38 = 3/8" 12 = 1/2" 1 = 1" |
Ignore anything after the size (like 12GAS, 08N or 3/4-16 ORB). That's the hose thread, not the coupler size. F or M at the end = female or male.
Kubota owners: Kubota part 7J417-66220 is a Faster HNV coupler. That's 3/8" 7241-B. It's the most common wrong-size order we see, so double-check before you buy.
Know your size now? Shop Tractor Relief Tools™ for Faster Couplers →
Common Faster Part Numbers and Sizes
| Part number | Size | Matching tool |
|---|---|---|
| FFH08 12GAS F | 1/2" flat face, female | 1/2" Flat Face Tool → |
| FFH06 | 3/8" flat face | 3/8" Flat Face Tool → |
| FFH16 | 1" flat face | 1" Flat Face Tool → |
| HNV 38 | 3/8" 7241-B | 3/8" 7241-B Tool → |
| Kubota 7J417-66220 | 3/8" 7241-B | 3/8" 7241-B Tool → |
| HNV 14 | 1/4" 7241-B | 1/4" 7241-B Tool → |
| NV 12 | 1/2" ag | 1/2" Ag / Pioneer Tool → |
Faster Coupler Won't Connect? Fix It in Seconds.


It's almost always pressure trapped in the disconnected half. The Tractor Relief Tool™ pushes onto the coupler, releases that pressure, and you reconnect. No hammer, no loosened fittings, no oil spray.
- Built for this one job. Lives in the cab.
- Steel, aluminum and stainless steel.
- Right Size Guarantee: easy exchange within 30 days.
Still not sure of your size? Search your part number or measurement:
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Powered by Tractor Relief Tool™. Faster is a brand of its owner. Tractor Relief Tool™ is not affiliated with Faster. Always confirm your size before ordering.