5WK9 6726A Nitrogen Oxide 359-9172 NOx Sensor 359-9172-02 fit for CAT 3599172
In stock — 10 pcs
Use PayPal/card checkout for small-quantity sample testing. Freight is confirmed by destination at checkout.
Send OE number, application, quantity, destination and packaging needs before PI or T/T payment.
Shown below are approved product reviews from buyers. Support questions and unverified messages are not counted as public testimonials.
“the sensors work good”
— Wade
“good quality, I buy 2 pcs , they work well, full replace”
— David
“Fast delivery, this is the best quality I bought ever, recommend”
— Paki
Interchangeable OE Numbers & Fitment Matrix
Direct OE replacements, aftermarket cross-references, and vehicle application fitment verified by SHR Autoparts. All sensors comply with IATF 16949 production standards.
| OE / Part Number | Manufacturer / Series | Interchange Role | Catalog Fitment |
|---|---|---|---|
| 6726A | Caterpillar OEM / Equivalent | Direct Interchangeable Number | Direct Interchange |
| 3599172 | Caterpillar OEM | Primary OEM Part Number | Direct Interchange |
| 5WK9 | Continental / VDO | Continental 5WK9 Sensor Series | View Matching Product → |
| 5WK96726A | Continental / VDO | Continental 5WK9 Sensor Series | Direct Interchange |
| 5WK9 6726A | Continental / VDO | Continental 5WK9 Sensor Series | Direct Interchange |
| 359-9172 | Caterpillar OEM / Equivalent | Direct Interchangeable Number | Direct Interchange |
| 359-9172-02 | Caterpillar OEM / Equivalent | Direct Interchangeable Number | Direct Interchange |
| BOLT-ON | Caterpillar OEM / Equivalent | Direct Interchangeable Number | Direct Interchange |
Specifications
| OE | 6726A · 3599172 · 5WK9 |
|---|---|
| Interchange Matrix | View full interchangeable OE numbers & cross-reference ↓ |
| Internal SKU | 5324221652394 |
| Product type | Caterpillar, NOx Sensor |
| Sample MOQ | 1 pc sample order supported |
| Warranty | Confirm warranty terms with sales before shipment |
| Availability | In stock — 10 pcs |
Cross Reference & OE Interchange
↑ Jump to full OE interchange matrix table with direct catalog links
Fitment
Vehicle application: Caterpillar C7.1, C9.3, C13, C15, C18 ACERT Tier 4 Final; Detroit Diesel DD13, DD15, DD16, Freightliner Cascadia, Western Star 49X/57X
Confirm engine model, vehicle application, and connector shape with sales before wholesale ordering.
Shipping & Warranty
Samples are positioned for fast dispatch where stock is available. Bulk orders can support neutral packaging or project-specific packing requirements after RFQ confirmation.
5WK9 6726A Nitrogen Oxide 359-9172 NOx Sensor 359-9172-02 fit for CAT 3599172. Professional-grade nox sensor from SHR Autoparts. IATF16949 certified manufacturer, 10+ years experience, serving distributors in 50+ countries.
Key Features
- Aftermarket cross-reference quality, IATF16949 certified
- Direct bolt-on replacement, no modifications needed
- 100% functionally tested before shipping
- 12-month warranty with technical support
- Compatible with Euro 5/6 SCR emissions systems
OEM Part Numbers
- 5WK9 6726A
- 6726A5
- 6726A1
- 6726A2
- 6726A3
- 6726A4
Specifications
| Product Type | NOx Sensor |
| Condition | New |
| Warranty | 12 months |
| Certification | IATF16949, ISO 9001 |
SKU: 5324221652394
Need bulk pricing? Request a Quote for volume discounts and OEM customization.
Frequently asked questions
Which vehicles does this part fit?
This part is specified for Cat. Because the same sensor fits several variants, confirm against your VIN or OE number before ordering; our team cross-references on request.
What OE part numbers does this replace?
It replaces the OE number shown in the product title. Send us your original part number and we will confirm the exact match.
What warranty and quality standard apply?
SHR builds this sensor under IATF16949 controls with OE-matching calibration. It carries a 1-year warranty against manufacturing defects; a failed unit is replaced free of charge within the warranty period.
Marcia Barry –
Good Quality Nox Sensors, they ship out in 3 days, work well on my vehicle
Paki Sparks –
Fast delivery, this is the best quality I bought ever, recommend
David K. Lundquist –
good quality, I buy 2 pcs , they work well, full replace
Wade Gracie –
the sensors work good