Beta Marine engines are marinized Kubota blocks — buy the tractor part
Every Beta Marine diesel is a marinized Kubota industrial engine. Here is the Beta-to-Kubota block map, so you can order internal service parts as far cheaper Kubota agricultural spares.
Beta Marine = Kubota, model for model
Beta Marine builds no engine of its own. Every Beta diesel is a marinized Kubota industrial block — Beta fits the marine hardware (heat exchanger, raw-water pump, marine gearbox) to a standard Kubota engine and gives it a Beta name. The internal engine is pure Kubota, so its service parts cross to Kubota part numbers, which sell through tractor, generator and plant channels for a fraction of the marine price.
Beta's own internal engine code makes the link explicit: the Beta 38 is coded "BV1505" — a Kubota V1505. Strip the "B" and you have the donor block.
Beta → Kubota block map
| Beta model | Kubota block | Cyl | Notes |
|---|---|---|---|
| Beta 10 / 14 | Z482 | 2 | |
| Beta 16 | Z602 | 2 | |
| Beta 20 | D722 | 3 | |
| Beta 25 | D902 | 3 | |
| Beta 28 | D1005 | 3 | |
| Beta 30 | D1105 | 3 | |
| Beta 35 / 38 | V1505 | 4 | Beta code BV1505 |
| Beta 43 | V2003 | 4 | |
| Beta 45T | V1505-T | 4 | turbo |
| Beta 50 | V2203 | 4 | |
| Beta 60 | V2403 | 4 | |
| Beta 75 | V3300 | 4 | |
| Beta 85T | V3300-T | 4 | turbo |
| Beta 90 | V3800 | 4 | |
| Beta 105T / 115T | V3800-T | 4 | turbo |
Worked example — a Beta 38 oil and fuel filter
The Beta 38 is a Kubota V1505. Its filters are stock Kubota "05-series" spin-ons:
- Oil filter — Kubota
HH164-32430→ WIX51307, FleetguardLF3706. (Beta sells the same filter
as 211-70510/02.)
- Fuel filter — Kubota
15221-43170→ WIX33390, BaldwinBF940. (Beta211-60210.)
Buying these under the Kubota or aftermarket number typically costs a fraction of the Beta-branded box. See the oil filter and fuel filter charts for the full family.
Find your Beta's parts
Open your model above and use the "Industrial / tractor part equivalents" view to list the Kubota block's parts, e.g. the Beta 38 savings view. For raw-water pump impellers, see the impeller cross-reference chart.
A base-engine match is a strong buying lead, not a fitment guarantee — Kubota part numbers supersede over time and Beta occasionally fits different auxiliaries. Confirm against a Kubota dealer before ordering. More in our Methodology.
This is an independent reference guide. Part numbers are compiled from public and third-party sources and may contain errors — always verify against an official source before ordering. See our Methodology. Browse all guides.