Skip to product information
SKU:
NLT2T04105
Ships for free in 2–4 business days.
24V Glow Plug Relay for Isuzu Engines / Hitachi EX27U EX35U EX50U ZX Series – 8942481610
$28.69
In Stock
$28.69
Sale price
$28.69
Regular price
This 24V glow-plug relay replaces Isuzu 8942481610 and is used across many Isuzu industrial diesel engines and Hitachi compact excavators.
Estimated delivery between
Let Northline Parts Do the Heavy Lifting for You!
Not sure which part you need? Our team can help you find the right replacement.
Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT
Live Chat: Available 24/7
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
Edward H. — Verified customer
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
| Brand / Equipment | Compatible Models / Engines | Fitment Notes |
|---|---|---|
| Isuzu | C240, 3AA1, 3LA1, 3LB1, 3LD1, 3LD2, 4JA1, 4JB1, 4JG1, 4JG2, 4JJ1 and others | Industrial diesel engine references |
| Hitachi | EX27U, EX30U, EX35U, EX40U, EX50U, EX55UR-3, EX58MU | Excavators |
| Hitachi | ZAXIS27U, ZAXIS35U, ZAXIS40U, ZAXIS50U; ZX27U, ZX30U, ZX35U, ZX40U, ZX50U, ZX55UR | Excavators / compact excavators |
Product Overview
Research on 8942481610 shows much broader compatibility than the four machines in the original title. The relay is listed for Isuzu C240, 4JJ1, 3AA1, 3LB1 and many other 2/3/4-cylinder industrial engines, along with Hitachi EX27U/30U/35U/40U/50U, ZAXIS and ZX compact excavator families.
The relay switches the high-current glow-plug circuit during preheat. A failed relay can cause long cold cranking, white smoke and rough cold starts even when the glow plugs themselves are good. Verify 24V system voltage and the 8942481610 connector/terminal layout before replacement.
Key Features & Performance
- 24V glow-plug/preheat relay
- Cross-reference 8942481610 / 894248-1610
- Expanded engine and Hitachi compact-excavator application data
Reference Part Numbers
- 8942481610
- 894248-1610
Product Details
- Component: Glow plug relay
- Electrical system: 24V
What to Verify Before Ordering
Confirm machine system voltage is 24V and match the original relay number/terminal layout before installation.
Frequently Asked Questions
Can a bad glow relay cause hard cold starts with good glow plugs?
Yes. If the relay does not deliver power during preheat, the plugs cannot heat correctly.
Does this relay fit only Hitachi excavators?
No. The same Isuzu reference is used across multiple Isuzu-engine applications and several Hitachi/Doosan machine families.