SKU: 50627001278

SW1951C Starter Solenoid Relay for Ford F150 F250 F350 F450 Escort Bronco Mustang Ranger & Mercury & Lincoln - E5TZ-11450-A E9TZ-11450-B SW1951

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Description

SW1951C Starter Solenoid Relay for Ford F150 F250 F350 F450 Escort Bronco Mustang Ranger & Mercury & Lincoln - E5TZ-11450-A E9TZ-11450-B SW1951SW1951C Heavy Duty Starter Solenoid Relay Key Features High Current Copper Terminals: Equipped with premium copper contact studs that ensure maximum electrical conductivity and minimal voltage drop during high amp cold starts. Heavy Duty Solenoid Coil: Features an upgraded internal winding designed to operate reliably under extreme under hood temperatures and high vibration off road conditions. Phenolic Molded Housing: Constructed from high

SW1951C Heavy Duty Starter Solenoid Relay

Key Features

  • High-Current Copper Terminals: Equipped with premium copper contact studs that ensure maximum electrical conductivity and minimal voltage drop during high-amp cold starts.
  • Heavy-Duty Solenoid Coil: Features an upgraded internal winding designed to operate reliably under extreme under-hood temperatures and high-vibration off-road conditions.
  • Phenolic Molded Housing: Constructed from high-temperature phenolic plastic to resist cracking, moisture intrusion, and electrical tracking between terminals.
  • Universal 4-Terminal Interface: Includes two primary battery/starter studs and two small signal terminals (S and I), maintaining the classic Ford electrical layout for easy wiring.
  • Direct OE-Spec Fitment: Designed with the standard vertical mounting bracket and hole spacing found on Ford trucks and cars from the 1980s through the early 2000s.

Replaces / Cross-Reference Part Numbers

  • Ford: E5TZ-11450-A, E7TZ-11450-A, E9TZ-11450-B, F5TU-11450-BA
  • Motorcraft: SW1951, SW1951A, SW1951C
  • Other: 6012928, B6AZ-11450-A, F1491, SS581

Compatibility & Fitment

This solenoid is the "classic" fender-mounted relay used across decades of Ford, Lincoln, and Mercury vehicles. Key compatible models include:

  • Ford F-Series: F-150, F-250, F-350, F-450, F-550 (including Super Duty models up to the early 2000s).
  • Ford Trucks & SUVs: Ranger, Bronco, Explorer, Expedition, Excursion.
  • Ford Vans: E-150, E-250, E-350, E-450 Econoline series.
  • Ford Cars: Mustang, Crown Victoria, Escort, Taurus, Thunderbird.
  • Lincoln & Mercury: Town Car, Grand Marquis, Navigator, Mountaineer.

When to Replace

  • The "Clicking" Sound: You hear a single, sharp click when turning the key, but the starter motor does not engage.
  • Intermittent Starting: The vehicle starts fine one moment but refuses to turn over the next, often requiring a "tap" on the solenoid to work.
  • Starter Stays Engaged: The starter motor continues to spin even after the engine has started and the key is released (indicates the internal contacts have "welded" shut).
  • No Sound at All: Turning the key results in total silence, suggesting the internal solenoid coil has failed or is not receiving the signal.
  • Corroded Terminals: The copper studs have become heavily oxidized or the mounting bracket is rusted, preventing a solid ground connection to the fender.

Installation Tips

  • Battery Disconnect: Always disconnect the Negative (-) battery cable before starting. This solenoid is connected directly to the "hot" side of the battery and can cause a massive short if accidentally grounded.
  • Grounding is Key: This relay grounds through its metal mounting bracket. Ensure the fender area where it bolts on is clean and free of paint, rust, or debris to ensure a solid electrical circuit.
  • Terminal Orientation: Note the "S" and "I" markings on the small terminals. The "S" terminal (Start) receives power from the ignition switch, while the "I" terminal (Ignition) provides a bypass to the coil during cranking on older points-based systems.
  • Avoid Over-tightening: The large copper studs are seated in plastic. Use a back-up wrench if possible to avoid twisting the internal contacts while tightening the main battery cables.
  • Safety Check: After installation, ensure all wires are clear of moving parts like the fan or hot exhaust manifolds.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 50627001278

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4.1 ★★★★★
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A
Verified Purchase
Andrew
Chelsea, US
★★★★★ 5
Good shelves!
Easy enough to assemble and as shown in the pictures you can shape the shelves how you want them. There is one screw hole in the mounting bracket right in the narrow part which makes it difficult to get a screw into. To get around this I just put a screw in at an angle. The quality is decent and I would not overload these by any means. However, if you are looking for cheaper shelves that look decent for light items these will work great.
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Reviewed in the United States on July 10, 2025
J
Verified Purchase
Jan
Pawtucket, US
★★★★★ 3
Great shelves for the price (~$15), but could be better.
Unlike many others here reviewing the item, I took note of the dimensions & the rough surface of the wood *before* purchasing it & read the instructions that tells you how NOT to assemble it. So my review won't be mentioning how it was smaller than I expected, how unexpectedly rough the wood was, or the fact that it fell off my wall because I didn't read the instructions. About how NOT to install it- never screw into the board such that the weight is relying on the *screws* to keep it up. Whichever way you place the brackets in relation to the wood, above or below, make sure the weight is ON THE BRACKETS. In other words, *never* screw in from THE TOP OF the shelf. The instructions specifically point this out, so if you see any reviews about the screws stripping out of the wood and the thing crashing to the floor-- they didn't read the instructions and they assembled it incorrectly. And no, unlike what some reviews here are telling you, it is not painted plastic. It is wood. I sanded it, it's wood. They tell you that in the description of the item, too. Paulownia, but yes, the weight of it reminds you of styrofoam, which isn't a bad thing. Ive read its a sturdy wood, relative to how much it weighs. I was already expecting rough boards when I bought it, but on top of that fact the surface had the grossest hand-feel I've ever felt (probably from the surface + the paint they used) that I ended up lightly sanding it with 120 grit (which helped a ton with the feel while also doing very little to the painted surface) and painted it with some white paint that we had on hand (it was originally grey). Much better. The brackets getting in the way of screwing is awful because I don't have a 90° angle screwdriver, but it worked out alright enough. The resulting angle wasn't severe by any means, but still I recommend making sure you have a 90° angle screwdriver before purchasing because I'd much rather it be nice, clean, flush screws. One point of serious suggestion for the seller would be that the brackets need more than a quick dot of welding. Even though my brackets came relatively even and all with unbroken welding, judging from other reviews and looking at mine, this is an area that could definitely do with some improvement. Another suggestion for the seller would be to include a few extra drywall anchors. I ended up breaking three of them trying to get them in my drywall and now I have to go find some replacements. I think our drywall is about as petrified as our studs because in looking up external sources for the best method of installing these types of anchors (to make sure I wouldn't break any. smh) they recommend to NOT predrill, as these are made with no predrilling in mind. However, when trying to initially gently hammer them in with my rubber mallet as the instructions stated, they just weren't penetrating the drywall very far and I even made sure to pierce the paint layer (which is recommended if your walls have a thick layer of paint from over the years). I actually ended up quite extensively drilling in order to get the first portion of the anchors (before the threads) into the wall without doing too much damage to the anchors. Ive gotten two of the three shelves up but can't get the last one up until I get more drywall anchors. So far so good. Lightly hand sanded and a couple coats of paint slapped on them and I quite like them. Definitely takes a lot of time installing them though, so expect that before going into it. Rated 3 stars for the gross hand-feel, the brackets needing more welding, the brackets that could've been more even with each other, the lack of warning that you'd need a 90° angle screwdriver, and the lack of backup drywall anchors.
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Reviewed in the United States on November 1, 2023
A
Verified Purchase
Amazon Customer
Pawtucket, US
★★★★★ 5
WOULD buy again!!
Color: Dark Brown
VERY STURDY! Id buy them again. Easy to clean & hang on the wall. Look good hanging up. Weight capacity is more then i thought it would be.
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Reviewed in the United States on January 16, 2026
D
Verified Purchase
Danielle M.
Boise, US
★★★★★ 5
style, durability, and functionality
The Amada HOMEFURNISHING Floating Wall Shelves offer a perfect blend of style, durability, and functionality. Whether you're looking to display decorative items or need extra storage space, these shelves are a valuable addition to any room. Their easy installation and sturdy design make them a worthwhile investment for enhancing your home's decor.
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Reviewed in the United States on May 1, 2025
A
Verified Purchase
APR
Draper, US
★★★★★ 5
A Victorian Addition
Color: 4 Panels Black Wood, Size: 4 Panels, Color: 4 Panels Black Wood, Size: 4 Panels
I am so impressed! This room divider is a piece of Victorian architecture for my dressing area. Well made , eye-catching and refined...just beautiful!
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Reviewed in the United States on March 24, 2026

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