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SKU: 3123D-C / UPC: 887753989765
J&L Oil Separator for 2014-2018 Chevy Silverado 1500 and GMC Sierra 1500 4.3L V6 Engines - Clear Anodized Finish
The J&L 3.0 Oil Separator stands out as the most effective solution for maintaining a clean crankcase ventilation system in your 2014-2018 Chevy Silverado 1500 or GMC Sierra 1500 equipped with the 4.3L V6 engine. Unlike other oil catch cans or separators that allow more oil vapors to pass through to the intake, this design captures a higher volume of contaminants, ensuring your engine stays free from buildup that can reduce efficiency and lead to costly maintenance over time. Drivers report noticeably less oil residue in the intake manifold compared to generic alternatives, making it the practical pick for long-term reliability and performance in daily driving or towing scenarios. With its plug-and-play installation using OEM-style quick-connect fittings, this separator integrates seamlessly without modifications, providing the cleanest air recirculation path available for these GM trucks.
Key Specifications and Features
- Model and Design: J&L 3.0 Oil Separator, specifically engineered for the driver-side PCV system on 4.3L V6 engines. It features a solid billet aluminum construction with a clear anodized finish for corrosion resistance and visibility into collected fluids.
- Capacity: 3 ounces (approximately 90 ml), sufficient to handle typical blow-by volumes without frequent emptying—check and drain every 2,000-3,000 miles based on driving conditions.
- Filtration System: Equipped with a 1/2-inch thick aluminum honeycomb filter combined with a stainless steel mesh screen to trap fine oil vapors, water, and fuel residues more thoroughly than standard mesh-only designs.
- Part Number: 3123D-C
- UPC: 887753989765
- Warranty: Limited lifetime warranty from J&L Oil Separator Co., covering defects in materials and workmanship.
Compatibility Notes: Direct fit for naturally aspirated 4.3L V6 (engine code LV3) not compatible with hybrid models or engines using different PCV routing. Confirm your vehicle's PCV setup matches the standard configuration for these years.
This separator addresses the common issue in GM 4.3L V6 engines where crankcase vapors carry oil mist back into the intake, potentially diluting fuel and causing carbon deposits. By separating and collecting these vapors, it helps preserve octane levels, supports better combustion, and extends the life of components like valves and turbos (if upgraded). Compared to competitors like basic baffled catch cans, the J&L 3.0's multi-layer filtration and compact mounting position under the hood deliver more consistent results, as evidenced by user feedback on reduced service intervals.
Vehicle Fitment Details
This oil separator is precision-fit for the following models with the 4.3L V6 engine:
- Chevrolet Silverado 1500 (2014-2018):
- Base
- LS
- LT
- LTZ
- Work Truck (WT)
- All cab styles (Regular Cab, Double Cab, Crew Cab) and bed lengths (Short Bed, Standard Bed, Long Bed); 2WD and 4WD variants.
- GMC Sierra 1500 (2014-2018):
- Base
- SLE
- SLT
- All cab styles (Regular Cab, Double Cab, Crew Cab) and bed lengths (Short Bed, Standard Bed, Long Bed); 2WD and 4WD variants.
Installation requires no drilling or custom brackets—simply disconnect the factory PCV hose at the valve cover and throttle body, then route it through the separator. The process takes about 15-30 minutes with basic tools. For detailed instructions, refer to the included manual or J&L's installation video resources.
What's Included in the Purchase
Every purchase of the J&L 3.0 Oil Separator (SKU 3123D-C) comes complete with all necessary components for a straightforward installation and reliable operation:
- One (1) J&L 3.0 Oil Separator unit in clear anodized finish.
- Pre-assembled quick-connect fittings (OEM-style barbed connectors for the PCV hose inlet and outlet).
- Mounting bracket with hardware (bolts, washers, and zip ties for secure hood placement).
- Drain valve and hose assembly for easy emptying without tools.
- Comprehensive installation instructions with diagrams specific to 4.3L V6 Silverado/Sierra models.
- J&L branded reminder stickers for maintenance scheduling.
No additional adapters or parts are needed for standard fitment.
Packaging, Weight, and Shipping Information
- Part Weight: Approximately 1.5 lbs (0.68 kg), including all fittings and bracket lightweight design for easy handling and minimal impact on vehicle balance.
- Shipping Box Dimensions: 10 inches x 6 inches x 4 inches (25.4 cm x 15.2 cm x 10.2 cm), compact packaging to reduce shipping costs and ensure safe transit.
- Shipping Weight: Around 2 lbs (0.91 kg) total, including protective foam inserts to prevent damage.
This J&L Oil Separator (3123D-C) delivers the targeted protection your 4.3L V6 needs, outperforming other options in contaminant capture and ease of use, making it the clear choice for Chevy Silverado 1500 and GMC Sierra 1500 owners seeking dependable engine care.
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