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Support a Matched Coyote Build with a Billet-Back-Plate Pump
Boundary CM-S1-R3-BBP is an assembled billet-gear oil pump for the 2024–2026 Ford Mustang 5.0L Coyote. Its billet back plate is the high-flow option for demanding engine builds.
Key Features
- CM-S1-R3-BBP is the R3-generation assembled pump, not an earlier Coyote revision.
- Billet back plate included with the standard-heat-treated gear configuration.
- Ford OEM housing with a billet gearset; not a completely billet housing.
- Manufacturer assembly includes cleaning, deburring, lubrication and specification checks.
Fitment
| Years | Make | Model | Engine / Requirements |
|---|---|---|---|
| 2024–2026 | Ford | Mustang | 5.0L Coyote V8 only; R3 pump configuration. Excludes EcoBoost, earlier pump revisions and the 2021+ belt-driven F-150 application. |
Match CM-S1-R3-BBP to the actual engine and pump configuration, especially on engine-swapped or modified vehicles.
Specifications
| Detail | Value |
|---|---|
| Manufacturer | Boundary Racing Pumps |
| MPN | CM-S1-R3-BBP |
| Assembly | Stage 1 R3 Coyote oil pump |
| Gear construction | Billet steel |
| Treatment | Standard heat treatment; not the MartenWear version |
| Back plate | Billet back plate |
| Warranty | Manufacturer lifetime warranty; terms apply |
What's Included
- One CM-S1-R3-BBP assembled oil pump, including the billet back plate.
- Only the specified assembly; related parts and service consumables are separate.
About Boundary
Boundary Racing Pumps develops billet oil-pump gears and assembled pumps in the USA. Its range includes engine-specific pump revisions, high-flow designs and optional MartenWear surface treatment.
Related Parts
- Boundary CM-SP-15 crankshaft timing sprocket — a separately sold Coyote timing component. Confirm crankshaft/keyway and engine configuration independently.
FAQ
What is the CM-S1-R3-BBP?An assembled R3 Coyote oil pump with a billet back plate and standard-heat-treated gears.
Is this for a Mustang EcoBoost?No. This application is for the specified 5.0L Coyote V8.
Can I fit it to a 2021-or-newer F-150?No such fitment is established here. Boundary identifies those F-150 applications as belt driven.
Does it fit earlier Coyote pump revisions?Select the correct revision for the actual engine. R3 does not establish interchangeability with R1 or R2.
Is the complete housing billet?No. Boundary describes an OEM Ford housing assembled with its billet gearset.
Does this version have MartenWear?No. This exact configuration uses standard heat treatment.
Is a billet back plate included?Yes. This is the billet-back-plate configuration.
Do I need a professional installer?Engine oil-pump service requires correct engine timing, sealing, priming and inspection. Use a qualified engine technician.
Installation Instructions
- Read the pump specification sheet and current manufacturer instructions; verify the actual engine, crank and pump revision.
- Have a qualified technician follow the vehicle service procedure for access, engine timing and sealing.
- Install CM-S1-R3-BBP using the specified clearances, priming method and fastener torques; no universal torque value applies.
- Verify oil pressure, sealing and correct operation before loading the engine.
Image note: Manufacturer and supplier product-family views illustrate the assembly and gear design. Treatment and back-plate contents follow the exact part number above; representative open views do not show every supplied component.
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