Kawasaki FT-Series Cross-Reference: Filters, Plugs & Oil
The commercial FT line in one place: FT651V, FT691V and FT730V. Genuine Kawasaki numbers, the aftermarket crosses worth buying, and the one filter that sets these engines apart from the FR and FS families.
The Kawasaki FT series is the 20–26 HP workhorse family built for long days and heavy loads, offered in both carbureted and EFI builds. The best news for anyone stocking a shop shelf: all three engines share every consumable on this page. Same air filter, same plugs, same fuel filter, same oil filter, same oil. The only thing that changes is how much oil the FT730V holds. And that air filter is the part that makes the FT different from its FR and FS cousins — it’s the canister element for Kawasaki’s vortical air filtration system, which spins grass and debris out of the airstream before it ever reaches the media. Here’s everything in one place, straight from the parts counter.
The engine model is stamped on the blower housing or a label near the recoil. It’s not the same as your mower’s model number. Match the engine label before you order, because the FT, FR, FS and FX families share a lot of look-alike parts that don’t actually interchange — the FT’s canister air filter being the prime example. And grab the spec/code number off that same label, since some builds vary on filters by spec.
Full FT-Series Cross-Reference Table
| Engine | Air Filter | Spark Plug ×2 | Fuel Filter | Oil Filter | Engine Oil | Capacity* |
|---|---|---|---|---|---|---|
| FT651V | 11013-0807 | 92070-7004 | 49019-0031 | 49065-0736 | 99969-6296 | ~2.1 qt |
| FT691V | 11013-0807 | 92070-7004 | 49019-0031 | 49065-0736 | 99969-6296 | ~2.1 qt |
| FT730V | 11013-0807 | 92070-7004 | 49019-0031 | 49065-0736 | 99969-6296 | ~2.2 qt |
*Oil capacities are approximate and include a full oil filter — always finish to the dipstick. Spark plug 92070-7004 is a re-branded NGK BPR4ES; two required per engine.
Aftermarket Cross-Reference
| Part | Kawasaki OEM | Aftermarket Crosses |
|---|---|---|
| Air filter | 11013-0807 | Rotary 16825 / Stens 100-908 |
| Spark plug (×2) | 92070-7004 | NGK BPR4ES / Rotary 9873 |
| Fuel filter | 49019-0031 | OEM only — stay genuine |
| Oil filter | 49065-0736 | Rotary 6929 / ECOGARD SE-1 |
| Engine oil (10W-40) | 99969-6296 | — |
Air Filter 11013-0807
Here’s where the FT breaks from the rest of the Kawasaki lineup. Instead of the flat oval element the FR and FS engines run, all three FT engines use the Kawasaki 11013-0807 canister element — the heart of the vortical air filtration system. Incoming air spins through the canister so grass clippings and heavy debris get thrown out of the airstream before they ever load up the media, which is exactly what you want on an engine that spends its life in cut grass. Aftermarket crosses that hold up: Rotary 16825 and Stens 100-908.
Same care rules as any dry paper element: replace it at least once a season, sooner in dusty conditions, and tap it out rather than blowing it out with high-pressure air, which tears the media. Don’t try to swap an FR/FS oval filter in here — it’s a completely different housing.
Spark Plugs 92070-7004 ×2
Every FT engine here uses the same plug, and each is a V-twin, so you need two. Kawasaki’s number is 92070-7004, a re-branded NGK BPR4ES, so an NGK BPR4ES off the shelf is the same plug, and Rotary 9873 is the aftermarket cross. They come pre-gapped from the factory, so they go in straight out of the box; verify the gap if you like, but you shouldn’t need to set it. Replace both at the same time so the engine runs even.
Fuel Filter 49019-0031
All three FT engines use Kawasaki 49019-0031 — the same filter I call the universal upgrade across the FR, FS and FX families. This is the one place I tell people to stay genuine across the board. The cheap universal inline fuel filters are less than optimal on these engines, with wrong micron ratings, weaker housings and inconsistent flow, while it’s a couple-dollar part protecting a fuel system that costs a great deal more. Buy the real Kawasaki filter.
Oil Filter 49065-0736
The spin-on oil filter across the FT line is Kawasaki 49065-0736, with Rotary 6929 or ECOGARD SE-1 as reliable aftermarket crosses. Change it with every oil change, not every other, on air-cooled engines that work this hard.
Engine Oil 99969-6296 & Capacities
All three engines take the same Kawasaki 99969-6296 10W-40. The FT651V and FT691V hold roughly 2.1 quarts; the FT730V holds roughly 2.2 quarts. Grab three quarts either way and you’re covered. Use the viscosity called out in your operator’s manual for your temperature range.
They’re nominal, not exact, and they already count a full oil filter as part of the capacity. When you change oil, the new filter soaks up some of what you pour in, so going strictly by the quart can read low. Always finish on the dipstick: add most of the oil, run the engine a moment to fill the filter, shut it off, let it settle, then top off to the full mark. Never just pour in the rated amount and walk away.
Car oils are formulated for liquid-cooled engines and have had their zinc/ZDDP anti-wear additive reduced over the years to protect catalytic converters. Air-cooled engines like the FT series run considerably hotter and lean harder on that anti-wear film, so automotive oil leaves them under-protected. Kawasaki’s 99969-6296 carries the formulated zinc additive package these engines were designed around. Stick with it.
Quick Reference by Engine
Kawasaki FT651V
- Air filter — 11013-0807 (Rotary 16825 / Stens 100-908)
- Spark plugs — 92070-7004 / NGK BPR4ES (Rotary 9873) ×2, pre-gapped
- Fuel filter — 49019-0031 (OEM only)
- Oil filter — 49065-0736 (Rotary 6929 / ECOGARD SE-1)
- Oil — 99969-6296 10W-40, ~2.1 qt (buy 3)
Kawasaki FT691V
- Air filter — 11013-0807 (Rotary 16825 / Stens 100-908)
- Spark plugs — 92070-7004 / NGK BPR4ES (Rotary 9873) ×2, pre-gapped
- Fuel filter — 49019-0031 (OEM only)
- Oil filter — 49065-0736 (Rotary 6929 / ECOGARD SE-1)
- Oil — 99969-6296 10W-40, ~2.1 qt (buy 3)
Kawasaki FT730V
- Air filter — 11013-0807 (Rotary 16825 / Stens 100-908)
- Spark plugs — 92070-7004 / NGK BPR4ES (Rotary 9873) ×2, pre-gapped
- Fuel filter — 49019-0031 (OEM only)
- Oil filter — 49065-0736 (Rotary 6929 / ECOGARD SE-1)
- Oil — 99969-6296 10W-40, ~2.2 qt (buy 3)
FT-Series Parts FAQ
Are Kawasaki FT-series filters interchangeable across engines?
What air filter does the Kawasaki FT651V use?
Is the FT-series air filter the same as the FR or FS filter?
What spark plug do Kawasaki FT engines use?
How much oil does a Kawasaki FT730V, FT691V or FT651V take?
Can I use automotive oil in a Kawasaki FT engine?
The Easiest Series Yet
Three engines, one shopping list. Stock the shelf once and every FT in the fleet is covered for the season.