# Northern Lights 673 Cast 316 Stainless Steel Exhaust Mixing Elbow 1.5" Replacement

CAST 316 Stainless Steel replacement exhaust elbow for 673 engines.

Replaces Northern Lights mixing elbow 135611140 / 135616570

Suits Northern Lights M673L2, M673L3, M673L3G M673LD2, M673LD3, M673LD3G NL673L2 and NL673L3

Also used on M643 models

-   Precision CNC machined investment cast 316 stainless steel
-   Purchase includes graphite gasket (NL 135996550)
-   1.5″ ( 39 mm) OD discharge
-   1-1/4 " (28mm) ID discharge

This is a non-OEM, aftermarket part HDI NL1.5.

## Details

- **Price:** 380.0 AUD
- **Vendor:** HDI Marine
- **Tags:** Sawley’s AAM Aftermarket – Exhaust Elbows Mixers & Risers – Northern Lights HDI | Marine Exhaust Elbows Risers & Mixing Elbows

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 380.00 AUD | In stock |

## Images

- Northern Lights 673 Cast 316 Stainless Steel Exhaust Mixing Elbow 1.5" Replacement

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/northern-lights-673-cast-316-stainless-steel-exhaust-mixing-elbow-1-5-replacement)
> Updated: 2026-06-23