Sun Coast Cycle Sports stocks inspected used parts for the 2014-2019 Polaris ACE 570, the single-seat sport UTV that offered an ATV-like experience with the safety features of a side-by-side. The ACE (All Conditions Extremist) combined a 567cc ProStar single-cylinder engine with a single-occupant cab, ROPS-certified roll cage, three-point seatbelt, doors, and EPS on select trims. The ACE filled a unique niche for riders who wanted roll cage protection and car-like controls without a passenger seat. Our Florida technicians evaluate each ACE 570 donor, photograph parts under unique SKUs, and ship free within the continental U.S.
ACE 570 generation and parts compatibility
| Model | Years | Engine | Power | Key Features |
|---|
| ACE 570 | 2014-2019 | 567cc ProStar single, EFI | 45 hp | Single-seat; steering wheel; ROPS cage; 3-point belt; On-Demand AWD |
| ACE 570 SP | 2015-2019 | 567cc ProStar single, EFI | 45 hp | Premium trim with EPS, premium paint, alloy wheels |
The ACE 570 uses the same 567cc ProStar single-cylinder engine found in the Sportsman 570 ATV, Ranger 570 UTV, and RZR 570. Engine internals interchange across all these Polaris platforms. The ACE's unique components are its single-seat cab design, steering wheel (not handlebars), single-occupant ROPS cage, and model-specific body panels. The chassis dimensions and suspension mounting points are unique to the ACE and do not directly interchange with the RZR 570 or Ranger 570.
Polaris also produced an ACE 900 (2016-2019) using the 900cc ProStar twin-cylinder engine. The ACE 570 and ACE 900 share the same cab layout and many body/cage components, but the engines are completely different (single-cylinder 570 vs twin-cylinder 900) and do not interchange.
The ACE lineup was discontinued after 2019 as Polaris shifted focus to the RZR Trail series and the expanding General lineup. The ACE's single-seat concept was not continued in any successor model, making ACE-specific parts (cab, doors, cage) increasingly scarce. Sun Coast's used parts inventory helps fill this gap for existing ACE owners.
Common ACE 570 failure points and replacement parts
Drive belt wear: The PVT belt is the standard consumable across all Polaris CVT vehicles. The ACE 570's 45 hp provides moderate belt stress and reasonable belt life with proper maintenance.
EPS motor and rack (SP models): The electronic power steering system on the SP trim can develop faults. The steering-wheel-based system places different loads on the EPS unit compared to handlebar-equipped Polaris vehicles. EPS component replacement restores normal function.
Door latch and hinge wear: The ACE's full doors are subjected to frequent opening and closing in a vehicle designed for frequent entry/exit. Latch mechanisms and hinge pins can develop wear, causing imprecise door closure or rattling.
CV boot tears: Same vulnerability as all Polaris vehicles with CV-equipped front axles. Trail debris can tear the CV boots, requiring prompt replacement to prevent joint damage.
Parts availability (discontinued model): The ACE was discontinued after 2019. Model-specific components (single-seat cab, doors, ROPS cage, steering column) are becoming scarce. Engine parts remain available through shared ProStar 570 compatibility. Sun Coast's used inventory provides a critical source for ACE-specific components.
Commonly replaced ACE 570 parts
- PVT drive belt
- Door latches and hinges
- EPS motor and steering rack (SP models)
- CV boots and axle shafts
- Plastic body panels and fenders
- ROPS cage pads and nets
- Brake pads
- Steering column components
- Windshield and roof accessories
Frequently asked questions
Q: Does the ACE 570 share its engine with other Polaris vehicles?
Yes. The 567cc ProStar single-cylinder engine is shared with the Sportsman 570 ATV, Ranger 570 UTV, and RZR 570. Engine internals interchange across all these platforms. The ACE's unique components are its single-seat cab, steering wheel, and model-specific bodywork, which are exclusive to the ACE.
Q: Are ACE 570 and ACE 900 parts interchangeable?
Many cab, door, cage, and body components interchange between the ACE 570 and ACE 900, as both use the same single-seat platform design. The engines are completely different (567cc single vs 900cc twin) and share no internal parts. Suspension and some drivetrain components may differ due to the 900's higher power output requiring stronger specifications.
Q: Why was the ACE discontinued and are parts still available?
Polaris discontinued the ACE after 2019 as market demand shifted toward two-seat RZR Trail models and the General lineup. The ACE's single-seat concept did not generate sufficient sales volume to continue production. Engine parts remain readily available through the ProStar 570 platform shared with the Sportsman, Ranger, and RZR 570. ACE-specific body and cab components are becoming harder to find through dealer channels, making used parts sources like Sun Coast Cycle Sports increasingly important for existing ACE owners.
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