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SKU:
NLT2V00107
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Universal 4x6 Clear Glass H4 Semi-Sealed Headlight Housing
$64.39
In Stock
$64.39
Sale price
$64.39
Regular price
This new aftermarket 4x6-inch clear glass diamond-cut headlight housing replaces compatible H4651 or H4656-format rectangular sealed beams when the bucket, retaining ring, pinout, and rear depth match.
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I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
- Vehicles using a compatible 4x6-inch H4651-style headlight
- Vehicles using a compatible 4x6-inch H4656-style headlight
Product Overview
Owners look for this housing when an old sealed beam is dim, cracked, rusty inside, or hard to service. The reusable housing accepts an H4-style bulb where shown, making future bulb replacement possible without changing the complete lamp.
The unit is an application-dependent rectangular headlight housing, not a vehicle-specific guarantee. It does not repair corroded sockets, weak grounds, a burned switch, damaged buckets, or poor beam aim.
Measure the opening and compare 4x6 dimensions, high- or low-beam position, H4651/H4656 connector pinout, bulb type, retaining ring, and rear clearance. Some four-lamp systems use different wiring at inner and outer positions.
Key Features & Performance
- Clear glass lens
- Diamond-cut reflector
- 4x6 rectangular semi-sealed format
- Serviceable H4-style bulb design where pictured
Replaces Part Numbers
- H4651
- H4656
- 4651
- 4652
- H4666
Common Uses
- Replacing one cracked rectangular sealed beam
- Restoring a classic car or truck lighting system
- Converting a compatible bucket to a serviceable bulb housing
Technical Specifications
- Product Type: Semi-sealed headlight housing
- Nominal Size: 4x6 inch
- Lens: Clear glass
- Condition: New aftermarket housing
Installation & Fitment
- Disconnect the battery
- Confirm pinout before powering the lamp
- Inspect the retaining ring and bucket
- Aim the headlight after installation
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application that is not shown above. Model year, production date, trim, body style, build location, lighting package, wiring, sensors, and previous repairs can change fitment. Match the original part, reference number, connectors, mounting points, dimensions, and product photos before purchase.
Frequently Asked Questions
Q: Is this guaranteed to fit my vehicle? A: No. Fit depends on the 4x6 bucket, connector, pinout, and clearance.
Q: Is an H4 bulb included? A: Verify the listing photos and package contents.
Q: Why can the lamp still be dim? A: Voltage drop, poor grounds, an old socket, wrong bulb, or incorrect aim can reduce light.
Q: Is this an original-equipment part? A: No. This is a new aftermarket product. Brand names and part numbers are used only to identify compatible applications.
Part Summary
keywords: 4x6 glass H4 headlight housing, H4651 semi sealed beam replacement, H4656 clear diamond cut lamp, rectangular classic car headlight, serviceable bulb headlamp housing
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, specifications, and application before purchase.