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Vehicle Info NeededOne-Way Oil Check Valve 1/2" NPT to 1/2" NPT
Ships on Oct 27, 2026
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- One-Way Oil Check Valve
- 1/2'' NPT to 1/2'' NPT
- 1/pkg
- Brass
- Prevents oil from draining back
- For use with oil accumulators and oil coolers
Moroso's Accumulator connects to the pressure side of an engine's oiling system. When the engine is running, oil pressure forces reserve oil into the accumulator & compresses the air ahead. If oil pressure should suddenly drop due to hard acceleration/braking or severe cornering, air pressure immediately sends oil to the main galleries. When danger passes & the pump is once again primed with oil, oil pressure forces oil back into the Accumulator to prepare for the next emergency. Moroso Accumulators can also manually pre-lube engines before start-up to prevent cold-start scuffing and premature bearing wear.
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Features:
- Aluminum Construction
- 710-23901 and 710-23900: For Street and Track
- 710-23903 and 710-23902: For Extreme Applications & All-Out Competition
- Capacities: 1.5 quarts for 4-Cylinder/6-Cylinder and 3 quarts for 8+ Cylinders
- Cold Start Valve Releases Oil into Cold Engine to Reduce Bearing Wear
- Air Pressure Gauge Verifies that Accumulator Is Ready for Use
- Manual Ball Valve (Unlike competing models)
- Tapped for 1/2" NPT Fitting
JEGS Easy Kits are designed by JEGS professionals to help you get all the performance parts you need.
For high-performance engines, lubrication can’t be left to chance. The Moroso Oil Accumulators and related systems ensure that when oil pressure dips under severe loads, a fast-acting reserve is ready to protect vital components. This accumulator oil setup keeps your engine safe during hard launches, tight cornering, and track-driven abuse.
Built from heavy-wall aluminum tubing with precision-machined pistons and sealed air chambers, each moroso accumulator is designed to store pressurized oil on standby. If oil pressure drops, it instantly supplies oil to the engine’s galleries—preventing damage and maintaining peak performance.
Whether you’re installing a dry-sump system or adding an extra layer of protection to a high-revving build, the moroso oil accumulator handles it with ease. These components are also excellent for pre-lube systems, helping eliminate metal-to-metal contact on cold starts and increasing engine longevity.
Installation is straightforward: mount the unit in the pressure side of your oiling system, set the air pre-charge, and configure the plumbing. From drag strips to endurance circuits, an external oil accumulator gives you insurance for your investment.
If you’re assembling a build where oil control under extreme conditions matters, choose the moroso accumulator upgrade. It’s not just a part — it’s intelligent protection for your engine’s most critical systems.
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