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Capture PCV oil mist before it reaches the intake
J&L 3131P-B is a direct-fit passenger-side oil separator for the 5.0-liter F-150. Its serviceable billet canister and OEM-style connections intercept suspended oil droplets in the PCV stream without requiring permanent vehicle modifications.
Key Features
- J&L 3131P-B direct-fit PCV-side configuration
- Solid billet-aluminum canister with black anodized finish
- Fine stainless-steel mesh and aluminum honeycomb filtration stages
- Three-ounce collection capacity with knurled removable base
- OEM-style quick-connect fittings for a no-cut installation
- Made in the United States and backed by J&L lifetime warranty coverage
Fitment
| Years | Make | Model | Engine and Position |
|---|---|---|---|
| 2021-2026 | Ford | F-150 | 5.0L engine; passenger/PCV side |
Specifications
| Detail | Value |
|---|---|
| Manufacturer Part Number | 3131P-B |
| Product Type | Oil Separator 3.0 |
| Material | Billet aluminum |
| Finish | Black anodized |
| Capacity | 3 fluid ounces |
| Filtration | Fine stainless-steel mesh and aluminum honeycomb |
| GTIN | 887753990051 |
| Country of Manufacture | United States |
What's Included
- J&L 3131P-B oil-separator canister
- Application-specific PCV hoses and OEM-style quick-connect fittings
- Mounting bracket and installation hardware shown with the exact kit
- Tools and unrelated engine components are not included
About J&L
J&L Oil Separator Co. designs, machines, and assembles serviceable billet-aluminum oil separators in the United States. Its direct-fit kits use application-specific brackets, hose routing, and OEM-style fittings and carry a lifetime warranty from the manufacturer.
Related Parts
- J&L 3.0 canister extension verified for the exact separator
- Replacement O-rings for the J&L 3.0 canister
- Engine-safe cleaning supplies for routine separator service
FAQ
What is the 3131P-B?It is a black anodized J&L Oil Separator 3.0 kit for the supported F-150 PCV-side application.
Which engine does this kit fit?It is verified for the 5.0-liter engine in the listed 2021-2026 Ford F-150 applications.
Which side of the PCV system is used?This kit installs on the passenger or PCV side using the application-specific hose routing.
Does installation require cutting?No. The direct-fit kit uses OEM-style quick-connect fittings and does not require permanent vehicle modifications when installed as directed.
How much fluid does the canister hold?The serviceable canister holds three fluid ounces.
How often should it be drained?J&L recommends checking collection regularly and notes a typical drain interval of about 2,000 to 3,000 miles, adjusted for the engine and driving conditions.
Does an oil separator require tuning?A direct-fit installation on the supported stock PCV routing does not normally require tuning. Modified induction or PCV systems should be reviewed by a qualified installer.
What should be inspected during service?Empty the canister before it fills and inspect the hoses, quick-connect fittings, bracket, O-ring, and canister seal for secure, leak-free operation.
Installation Instructions
- Confirm the vehicle has the 5.0-liter engine and the package identifies J&L 3131P-B.
- Work on a cool engine and review the current J&L instructions before disconnecting the factory PCV line.
- Install the supplied bracket at the specified passenger-side mounting location.
- Mount the separator upright and connect each application-specific hose to the correct PCV and intake port.
- Push every quick-connect fitting fully into place and route hoses away from heat, sharp edges, and moving components.
- Start the engine, check for vacuum leaks, and inspect the installation again after the first drive cycles.
- Drain and inspect the canister regularly based on the observed collection rate.
California Proposition 65 Warning: Cancer and reproductive harm. See www.P65Warnings.ca.gov.
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