3852215 Oil Pressure Sensor Sender Switch for Volvo Penta | JLM Marine

Oil Pressure Sensor Sender Switch for Volvo Penta – Fits 3.0L to 8.1L V6 V8 Engines

This Oil Pressure Sensor Sender Switch is designed for Volvo Penta and OMC Sterndrive engines ranging from 3.0L to 8.1L, including popular V6 and V8 configurations such as 4.3L, 5.0L, 5.7L, 7.4L, and 8.1L. It ensures accurate monitoring of oil pressure, helping to protect your engine from damage caused by low oil pressure conditions.

This aftermarket replacement directly replaces OEM part numbers 3852215 and 0379948, as well as Sierra part number 18-5894, offering reliable performance at a competitive price.

• Compatible with Volvo Penta and OMC Sterndrive engines from 3.0L to 8.1L
• Direct replacement for multiple OEM and aftermarket part numbers
• Essential sensor for accurate oil pressure monitoring

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below.

Technical Specifications

Package Contents

Your package includes:

• 1 × Oil Pressure Sensor Sender Switch

Installation Guide

1. Disconnect the battery to ensure safe working conditions.
2. Locate the existing oil pressure sensor on your engine block (typically near the oil filter or on the side of the block).
3. Disconnect the electrical connector from the old sensor by gently pulling it off.
4. Using an appropriate wrench or socket, carefully unscrew the old oil pressure sensor in a counterclockwise direction.
5. Clean the threads on the engine block where the sensor mounts to ensure a proper seal.
6. Apply a small amount of thread sealant (if recommended by your engine manual) to the threads of the new sensor.
7. Thread the new oil pressure sensor into the mounting hole by hand, turning clockwise.
8. Tighten the sensor using a wrench to the manufacturer's specified torque (avoid over-tightening to prevent thread damage).
9. Reconnect the electrical connector to the new sensor, ensuring it clicks securely into place.
10. Reconnect the battery and start the engine briefly to verify proper sensor operation.
11. Check for any oil leaks around the sensor and monitor the oil pressure gauge for accurate readings.
12. If the gauge does not function properly, recheck connections and sensor installation.

Troubleshooting & FAQ

Q: How do I know if this oil pressure sensor fits my Volvo Penta engine?
A: Check the compatible engine models table above. This sensor fits Volvo Penta and OMC Sterndrive engines from 3.0L to 8.1L, including V6 and V8 configurations. Verify your engine displacement and compare your existing sensor's part number (3852215, 0379948, or Sierra 18-5894) to confirm fitment.

Q: What are the signs that my oil pressure sensor is failing?
A: Common symptoms include erratic oil pressure gauge readings, a gauge that stays at zero or maximum, an illuminated oil pressure warning light when oil levels are normal, or intermittent gauge operation. If you notice any of these signs, the sensor should be tested and replaced if faulty.

Q: How often should I replace the oil pressure sensor?
A: Oil pressure sensors typically do not have a set replacement interval and are replaced when they fail or provide inaccurate readings. However, it's good practice to inspect the sensor during routine maintenance and replace it if you notice erratic gauge behavior or warning light issues.

Q: Can I install this sensor myself, or do I need a professional?
A: Installation is relatively straightforward for those with basic mechanical skills and tools. However, if you are unfamiliar with marine engine components or electrical connections, we recommend having a professional technician perform the installation to ensure proper function and avoid potential damage.

Q: Is this an OEM part or an aftermarket replacement?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.