Product Overview
Detroit A0121536328 A0111536128 Inlet NOx Sensor
Replace a failed Detroit Diesel inlet NOx sensor with this OEM designed and manufactured replacement for A0121536328 and A0111536128. Skyline SNX113 is designed for compatible Detroit DD13, DD15 and DD16 EPA21 / GHG21 applications and installs in the inlet / upstream / DOC inlet / pre-SCR position of the exhaust aftertreatment system.
Plain white box on the outside. OEM on the inside. Skyline SNX Series NOx sensors provide OEM design and manufacturing quality, Made in the USA construction and dependable fitment without the added cost of OEM-branded packaging. Skyline SNX113 is backed by a 1-Year Unlimited Mileage Warranty.
Detroit A0121536328 A0111536128 NOx Sensor Cross References
Fitment Verification: Match the OEM or manufacturer number stamped on the original NOx sensor or control module to one of the cross-reference numbers below before ordering.
| Manufacturer / Reference | Interchange Part Numbers |
|---|---|
| Detroit Diesel / DTNA OEM | A0121536328, EA0121536328, RA0121536328 |
| Detroit Diesel Formatted References | DDEA0121536328, DDEEA0121536328, DDERA0121536328, DDE A0121536328, DDE EA0121536328, DDE RA0121536328 |
| Detroit Diesel / DTNA OEM | A0111536128, EA0111536128, RA0111536128 |
| Detroit Diesel Formatted References | DDEA0111536128, DDEEA0111536128, DDERA0111536128, DDE A0111536128, DDE EA0111536128, DDE RA0111536128 |
| Continental / VDO / Vitesco | A2C18643600 |
| Dinex | 3FL022 |
| Skyline | ANX113 |
| Skyline | SNX113 |
Plain White Box on the Outside. OEM on the Inside.
Skyline SNX Series NOx sensors are OEM designed and manufactured by an original-equipment sensor supplier. Skyline SNX113 is engineered to provide the fit, electronics and application-specific performance expected from an original-equipment replacement.
Plain white box on the outside. OEM on the inside.
Instead of paying extra for OEM-branded packaging, you receive OEM-quality design and manufacturing in Skyline packaging, providing OEM quality at an aftermarket price.
A0121536328 Detroit DD13 DD15 DD16 Inlet NOx Sensor
Skyline SNX113 is an inlet / upstream / DOC inlet / pre-SCR NOx sensor designed for compatible later-generation Detroit EPA21 / GHG21 applications using the A0121536328 and A0111536128 sensor families.
Compatible Detroit Diesel engine applications may include:
- Detroit DD13
- Detroit DD15
- Detroit DD16
The highest-priority OEM search reference for Skyline SNX113 is A0121536328, followed by A0111536128. Engine family alone does not guarantee fitment, so always verify the original stamped OEM number and inlet sensor position before ordering.
Freightliner Cascadia A0121536328 Applications
This NOx sensor family is designed for compatible Freightliner Cascadia applications equipped with Detroit DD13, DD15 or DD16 engines and the matching EPA21 / GHG21 exhaust aftertreatment system.
Freightliner Cascadia production date, engine configuration, emissions calibration and aftertreatment hardware can vary. Always use the original stamped OEM number A0121536328 or A0111536128 as the primary fitment identifier.
A0121536328 Detroit EPA21 Inlet NOx Sensor Specifications
| Product Type | Nitrogen Oxide (NOx) Sensor |
| Sensor Position | Inlet / Upstream / DOC Inlet / Pre-SCR |
| Primary OEM Reference | A0121536328 |
| Additional OEM Family | A0111536128, EA0111536128, RA0111536128 |
| Continental / VDO / Vitesco | A2C18643600 |
| Primary Engine Applications | Detroit DD13, DD15, DD16 |
| Primary Truck Application | Freightliner Cascadia |
| Emissions Application | EPA21 / GHG21 |
| Generation | Later Detroit EPA21 NOx Sensor Family |
| Manufacturing | OEM Designed & Manufactured |
| Country of Origin | Made in the USA |
| Skyline Part Number | SNX113 |
| Warranty | 1-Year Unlimited Mileage Warranty |
| California Shipping | Available for sale and shipment to California |
OEM Quality at an Aftermarket Price
Skyline SNX113 combines OEM design and manufacturing, Made in the USA construction and a 1-Year Unlimited Mileage Warranty with aftermarket pricing.
For compatible Freightliner Cascadia applications equipped with Detroit DD13, DD15 or DD16 EPA21 / GHG21 engines and requiring an inlet or upstream NOx sensor, Skyline SNX113 provides a premium replacement centered on A0121536328 and A0111536128.
Fitment Verification
Detroit EPA21 applications can use multiple position-specific NOx sensors. Fitment can vary by engine, vehicle configuration, production date, emissions calibration, sensor position, connector, harness configuration and aftertreatment system. Always verify the exact OEM number stamped on the original sensor and confirm that the sensor being replaced is the inlet / upstream / DOC inlet unit.
Important Fitment Note: Match the replacement sensor to the exact Detroit OEM number, connector configuration and inlet / upstream sensor position. Product images are for reference only.
⚠️ WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer or reproductive harm. For more information go to www.P65Warnings.ca.gov.