Mercury MerCruiser OEM Remote Control Housing Clamping Screw 1-3/4 in. | 37941 | 10-37941 | Replaces 31114 | 4 per Assembly

Mercury MerCruiser OEM Remote Control Housing Clamping Screw — Part 37941

• Part Number: 37941
• Full Catalog Number: 10-37941
• Brand: Mercury Marine / MerCruiser (Genuine OEM)
• Official Product Type: Hardware & Fasteners — Remote Control Housing Clamping Screw
• System: Controls & rigging — remote control housing assembly
• Position: Remote control housing clamping fastener — secures the two halves of the control housing together
• Length: 1-3/4 in. (approximately 44.5 mm)
• Quantity per Assembly: Four screws per applicable remote-control housing
• Replaces: 31114 (earlier remote control housing clamping screw)
• GTIN / UPC: 745061140059
• Weight: approx. 0.01 kg

Multi-application fastener — confirm by diagram: 37941 is used as the remote control housing clamping screw on classic Mercury and MerCruiser control boxes (four screws per assembly), and also as an ignition coil mounting bracket screw on selected older Mercury and Mariner outboards. Confirm the correct application and quantity from the serial-number-specific Mercury parts diagram for the exact assembly being serviced.

What It Is

The 37941 / 10-37941 is the genuine OEM 1-3/4 in. clamping screw used in classic Mercury and MerCruiser remote-control housing assemblies, including MercControl and standard Mercury outboard remote-control boxes. Mercury diagrams typically specify four 37941 screws per control housing assembly, paired with clamping nuts to secure the two housing halves together. The same screw appears in selected older Mercury and Mariner outboard applications as an ignition coil mounting bracket screw. It supersedes earlier Mercury clamping screw 31114 in selected assemblies.

Compatible Applications

Confirm the correct quantity and diagram position from the serial-number-specific Mercury parts diagram before ordering. Because 37941 appears in both remote-control housing and ignition-coil bracket assemblies, the OEM number and diagram location are more reliable than the screw dimensions alone.

Remote Control Housing Applications:

• MercControl remote control housings — 4 screws per assembly
• Standard Mercury outboard remote control housings — selected mid-1980s and earlier production
• MerCruiser remote control assemblies — selected mid-1980s and earlier production

Ignition Coil Mounting Bracket Applications (verify by serial number):

• Mercury 850
• Mercury 1150
• Mercury 1500
• Mariner 70 HP
• Mariner 80 HP
• Mariner 90 HP
• Mariner 115 HP
• Mariner 140 HP

Not sure of the correct quantity or assembly? Send us your Mercury or MerCruiser serial number and the assembly being serviced before ordering.

Related Remote Control Assembly Components

Mercury remote control diagrams show 37941 installed with the following components. These are sold separately:

Control housing clamping:

• 34688 — Remote control housing clamping nut (common pairing with 37941)
• 30506 — Earlier clamping nut reference
• 34900 — Remote-control-to-boat mounting screw
• 69057 — Remote control mounting washer
• 24652 — Remote control mounting nut

Ignition coil bracket applications (where 37941 is used as a coil mounting screw):

• 26992 — Lockwasher
• 88488 — Additional coil mounting screw
• 52933 — Coil bracket spacer

Part Numbers

• 37941 — Current Mercury Marine OEM part number
• 10-37941 — Full Mercury / Quicksilver catalog number
• 31114 — Earlier remote control housing clamping screw superseded by 37941 in selected assemblies

When to Replace

Replace the clamping screw when:

• Threads are damaged or corroded
• The screw head is rounded and can no longer be driven
• The fastener is bent or broken
• The original hardware is missing from the assembly
• The control housing cannot be tightened securely
• Corrosion or previous overtightening has weakened the screw

When replacing the screw, inspect the mating clamping nut (34688 or 30506) at the same time — on older control boxes, both pieces may be corroded and should be replaced together.

Service Interval

No fixed hour-based interval — replace on condition. Inspect the remote control housing clamping screws and nuts whenever the control housing is opened for service or cable adjustment. In saltwater and high-humidity environments, hardware corrosion in classic Mercury control housings is common — proactive inspection during annual rigging service can prevent a corroded screw from complicating a future control housing repair.

Installation Notes

• Confirm 37941 is the correct screw and quantity for the exact assembly from the serial-number-specific Mercury parts diagram
• In remote control housing assemblies, four 37941 screws are typically required — confirm the quantity before ordering to avoid a second order
• Inspect the mating clamping nut (34688 or 30506) for thread condition and corrosion and replace as needed
• Inspect the mounting hardware (34900 screw, 69057 washer, 24652 nut) while the control box is apart
• For ignition coil bracket applications, confirm the correct companion hardware (26992 lockwasher, 88488 screw) from the outboard serial-number-specific diagram
• Torque to the specification in the applicable Mercury service manual for the specific assembly

Technical FAQ

Q: How many 37941 screws do I need for a remote control housing?
Mercury diagrams typically specify four 37941 screws per control housing assembly to clamp the two housing halves together. Confirm the quantity from the specific Mercury parts diagram for the control box model being serviced before ordering.

Q: Does 37941 replace 31114?
Yes, in selected remote control housing assemblies. 37941 / 10-37941 supersedes earlier Mercury clamping screw 31114. Order 37941.

Q: My remote control box is loose — could this be the clamping screws?
Loose or corroded clamping screws are a common cause of play or looseness in classic Mercury and MerCruiser control housings. If the housing halves are not held firmly together, control cables and lever mechanisms can develop unwanted movement. Replacing the clamping screws and nuts together typically restores a firm, rattle-free housing.

Q: Does 37941 also work as a standard metric M6 screw?
37941 is identified in Mercury catalogs by its imperial length (1-3/4 in.) rather than a metric thread designation. Do not substitute a generic metric screw for a structural control housing fastener — the OEM part ensures correct thread engagement, material grade, and corrosion resistance for the marine application.

Parts Desk Insights

The strongest application for 37941 is the classic Mercury and MerCruiser remote control housing, where four of these 1-3/4 in. screws clamp the housing halves together. The most common ordering issue is customers asking for one screw when they need four — the quantity should always be confirmed from the parts diagram. The clamping nuts (34688 or 30506) are frequently corroded at the same time as the screws on old control boxes, so suggesting both together avoids a repeat order. The secondary ignition coil bracket application on older Mercury and Mariner outboards is a different assembly entirely and should be confirmed by the outboard serial number before processing.