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

Mercury MerCruiser OEM Remote Control Housing Clamping Screw — Part 37941

• Part Number: 37941
• Full Catalog Number: 10-37941
• Brand: Mercury Marine / MerCruiser / Quicksilver (Genuine OEM)
• Official Product Type: Hardware & Fasteners — Remote Control Housing Clamping Screw
• System: Controls & rigging — remote control housing assembly; also used as ignition coil bracket screw on selected classic outboards
• Position: Remote control housing — clamping screws that secure the two housing halves together; four screws per assembly (typical)
• Length: 1-3/4 in. (approx. 44.5 mm)
• Typical Quantity: 4 per remote control housing assembly
• Replaces: 31114 (earlier remote control housing clamping screw)
• GTIN / UPC: 745061140059
• Weight: approx. 0.025 kg

Multi-application fastener — confirm by diagram position: 37941 is used as the remote control housing clamping screw in classic Mercury and MerCruiser remote-control assemblies (four per housing), and as an ignition coil bracket mounting screw on selected classic Mercury and Mariner outboards. Match the OEM number in the correct parts diagram for the assembly being serviced rather than relying on length alone.

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. Mercury parts diagrams identify 37941 as the clamping screw that secures the two halves of the control housing together, with four screws and four mating nuts (34688 or 30506) specified per assembly. The same screw appears in selected classic Mercury and Mariner outboard ignition-coil bracket applications, where it is used to mount the coil bracket. 37941 supersedes earlier Mercury clamping screw reference 31114.

Compatible Applications

Confirm fitment by control-box model or engine serial number and the specific Mercury parts diagram before ordering. 37941 appears in multiple diagram contexts and should be matched by OEM number and diagram position, not by length alone.

Remote Control Housing Applications

• Mercury MercControl remote-control assemblies
• Standard Mercury outboard remote-control assemblies — through mid-1980s production
• Selected MerCruiser remote-control assemblies from the same period

Classic Outboard Ignition Coil 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 it fits? Send us your Mercury or MerCruiser control-box model or outboard serial number before ordering.

Related Components

Remote control housing clamping applications:

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

Classic outboard ignition coil bracket applications (where applicable):

• 26992 — Lockwasher
• 4895A5 / 4895T2 — Ignition coil assembly references
• 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 Mercury remote control housing clamping screw; superseded by 37941

When to Replace

Replace the clamping screw when:

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

Inspect the mating clamping nut (34688 or 30506) at the same time — on older control boxes both the screw and nut are commonly corroded and should be replaced together.

Service Interval

No fixed service interval — replace on condition. Inspect the remote control housing clamping screws whenever the control box is opened for cable replacement, mechanism service, or other rigging work. Classic Mercury control-housing hardware is exposed to moisture and corrosion over decades of service, and seized or corroded screws are a common cause of difficulty accessing the control mechanism during service. Replacing all four screws (and their mating nuts) as a set during a control-box overhaul is standard practice.

Installation Notes

• Confirm 37941 is shown in the specific control-box or outboard diagram for the assembly being serviced — the same length screw is used in two different applications (housing clamp and ignition coil bracket)
• In remote control housing assemblies, four 37941 screws and four mating clamping nuts are typically required to secure the housing halves — confirm the quantity from the specific diagram
• Replace the mating nut (34688 or 30506) at the same time if there is any sign of corrosion or thread damage
• Do not overtighten — follow the torque specification in the applicable Mercury service procedure for the control housing being serviced
• Apply corrosion protection as specified for marine fasteners in exposed control-housing assemblies

Technical FAQ

Q: How many 37941 screws does a remote control housing require?
Mercury diagrams typically specify four 37941 screws per control housing assembly, paired with four clamping nuts (34688 or 30506). Confirm the quantity from the specific Mercury parts diagram for the control-box model being serviced.

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

Q: Is 37941 a remote control screw or an ignition coil screw?
Both. 37941 is primarily documented as the remote control housing clamping screw, where four are used to clamp the housing halves together. The same OEM screw also appears as an ignition coil bracket mounting screw on selected classic Mercury 850, 1150, and 1500 and Mariner 70–140 HP outboards. Match the screw to the specific diagram location for the assembly being serviced.

Q: My classic Mercury control box won't open — could the screws be seized?
Yes. Seized clamping screws are one of the most common obstacles when servicing classic Mercury remote-control housings. If the screws are corroded in place, penetrating oil and careful heat application are typically needed before attempting removal. Plan to replace all four screws and their mating nuts once the housing is open — original hardware rarely survives removal in good enough condition to reuse on a control box of this age.

Parts Desk Insights

The strongest and most common application for 37941 is the classic Mercury and MerCruiser remote control housing, where four of these 1-3/4 in. screws clamp the housing together. Because these control boxes are often decades old by the time they are opened for service, seized screws are the rule rather than the exception — ordering a full set of four (plus the mating nuts 34688) before starting the job is the right move. The ignition coil bracket application on the older Mercury and Mariner outboards is less common but worth knowing, since the same OEM number appears in a completely different location on a different type of assembly.