Used Yanmar UTV parts are available through Sun Coast Cycle Sports, inspected and cataloged with individual photographs and SKU numbers at our Florida warehouse. Yanmar Bull Series UTVs are rebranded Yamaha Vikings with Yanmar-specific trim and accessories, meaning most mechanical components are directly interchangeable with the Yamaha Viking platform. Our parts inventory covers the Bull, Longhorn, and Brahma models.
Yanmar model overview
Yanmar is a Japanese company established in 1912, known worldwide for its diesel engines, compact construction equipment, and agricultural tractors. In December 2016, Yanmar entered the UTV market with the Bull Series utility task vehicles. Rather than engineer a new vehicle from scratch, Yanmar partnered with Yamaha Motor Corporation to produce rebadged versions of the Yamaha Viking. The Yanmar Bull is mechanically identical to the Yamaha Viking (3-seat), and the Yanmar Longhorn is the same vehicle as the Yamaha Viking VI (6-seat). The only differences are exterior branding, decal packages, and the specific accessory configurations Yanmar bundles for its target market of commercial, rental, and agricultural customers.
In 2019, Yanmar added the Brahma, a diesel-powered UTV using a Yanmar three-cylinder diesel engine. The Brahma is not a Yamaha product and does not share its drivetrain with the gas-powered Bull or Longhorn. It is Yanmar's own design, available in canopy, semi-cab, and full-cab configurations with an automotive-style HVAC system. Yanmar UTVs are sold exclusively through Yanmar's construction equipment and agricultural tractor dealer network, not through Yamaha powersports dealers.
Models and year compatibility guide
| Model | Years | Engine | Platform notes |
|---|
| Bull (3-seat) | 2017-present | 686cc liquid-cooled SOHC single, ~28 hp | Rebranded Yamaha Viking. Same 686cc engine, CVT transmission, Ultramatic drive, frame, suspension, and brakes as the Yamaha Viking. Parts are interchangeable. Yanmar adds standard EPS, hard roof, rubber bed mat, and Yanmar branding. Rental-spec "Rent-A-Bull" units include a speed limiter (PCV), strobe light, backup alarm, horn, and universal key. |
| Longhorn (6-seat) | 2017-present | 686cc liquid-cooled SOHC single, ~28 hp | Rebranded Yamaha Viking VI. Extended wheelbase with two rows of three seats. Same engine and drivetrain as the Bull/Viking. All mechanical components interchange with the Yamaha Viking VI. Black Angus special edition offered in limited quantities (2018 Bull, 2019 Longhorn). |
| Brahma (diesel) | 2019-present | Yanmar 3-cyl diesel | Yanmar's own diesel UTV, not a Yamaha product. Available in canopy (hard roof only), semi-cab (front windshield with wiper, rear window), and full-cab (sealed doors, HVAC) configurations. Powered dump bed on full-cab models. Does not share drivetrain with the Bull or Longhorn. |
Common failure points and frequently replaced components
Bull / Longhorn (all issues mirror Yamaha Viking): Because the Bull and Longhorn are mechanically identical to the Yamaha Viking, they share the same known issues. The 686cc engine is generally reliable, with the most common maintenance items being CVT belt replacement and drive clutch service. Belt life is typically 2,000-4,000 miles depending on workload.
Bull / Longhorn (speed limiter, rental units): Many Yanmar Bull and Longhorn UTVs entering the used market were originally configured as Rent-A-Bull units with a PCV-based speed limiter restricting top speed to 20-25 mph. The limiter can be removed or reprogrammed, but owners should be aware that a sluggish-feeling Yanmar may simply have the rental speed limiter still installed.
Brahma (diesel-specific maintenance): The Brahma's diesel engine requires adherence to Yanmar's diesel maintenance schedule, including fuel filter changes, glow plug inspection, and use of the correct diesel engine oil specification. Cold-weather starting can be affected by worn glow plugs. The diesel drivetrain does not share components with the gas-powered Bull/Longhorn platform.
Most replaced Yanmar parts
- CVT belts and clutch assemblies (Bull and Longhorn, same as Yamaha Viking)
- Drive clutch and driven clutch sheaves
- Electrical components including EPS modules, instrument clusters, and wiring
- Brake pads, rotors, and calipers
- Suspension bushings, ball joints, and shock absorbers
- Body panels, bed components, and Yanmar-branded trim pieces
- Speed limiter PCV modules (rental fleet units)
- Fuel system components (fuel pumps, injectors, glow plugs for Brahma diesel)
- Windshield assemblies, roofs, and cab enclosure panels
Related Brands: Yamaha • Kubota • Bobcat UTV • Polaris
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Frequently asked questions
Q: Are Yanmar Bull and Yamaha Viking parts interchangeable?
Yes. The Yanmar Bull is a rebranded Yamaha Viking, and the Yanmar Longhorn is a rebranded Yamaha Viking VI. Other than exterior decals and Yanmar-specific accessory packages, the two vehicles are mechanically identical. Engine, transmission, CVT, suspension, brakes, frame, electrical, and most body components interchange directly. Yamaha part numbers will fit a Yanmar Bull and vice versa. This also means that the extensive Yamaha Viking aftermarket parts catalog is fully compatible with the Yanmar Bull and Longhorn.
Q: Does the Yanmar Brahma diesel share parts with the Bull or Longhorn?
No. The Brahma is an entirely separate vehicle with a Yanmar diesel engine and its own frame, drivetrain, and cab design. It does not share mechanical components with the gas-powered Bull or Longhorn (which are Yamaha Vikings). The Brahma was designed by Yanmar specifically for the commercial and rental market and has no Yamaha Viking DNA.
Q: How do I remove the speed limiter on a former rental Yanmar Bull?
The Rent-A-Bull speed limiter uses a PCV (power commander type module) installed in the wiring harness that restricts engine RPM. Removal typically involves disconnecting or reprogramming this module. The Yamaha Viking forum community has documented the process in detail, since the underlying vehicle is the same platform. We recommend consulting a qualified technician familiar with the Yamaha Viking/Yanmar Bull system before modifying the ECU or wiring.
