
APS4-12S-E2-D Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $21.94 | Condition is New – Open box, Koyo APS4-12S-E2-D Proximity Sensor, FREE SHIPPING | 99.7% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $11.00 | Condition is New, Koyo APS4-12S-E2-D Proximity Sensor 10-30VDC, New sealed Unit, shipping cost = $10.60 | 100.0% |
![]() | $30.00 | Top Pick! Condition is New, 2PCS Koyo APS4-12S-E2-D Proximity Sensor 10-30VDC, FREE SHIPPING | 100.0% |
![]() | $26.99 | Condition is New, Koyo APS4-12S-E2-D Proximity Sensor Automation Direct NEW, shipping cost = $8.95 | 100.0% |
![]() | $39.50 | Condition is New, Lot of 2, Koyo APS4-12S-E2-D Proximity Sensor, shipping cost = $7.50 | 100.0% |

Koyo Seiko APS4-12S-E2-D JTEKT APS412SE2D Aluminum Water Pump
The Koyo Seiko APS4-12S-E2-D JTEKT APS412SE2D is a high-performance aluminum water pump designed for various automotive applications. This water pump, manufactured by Koyo Seiko and distributed under the JTEKT brand, is engineered to deliver efficient cooling and reliable operation.
The pump housing is made of durable aluminum, which provides excellent heat dissipation capabilities and contributes to the overall weight reduction of the vehicle. The impeller is designed with a slim and compact shape to ensure a perfect fit in tight engine compartments while maintaining optimal cooling performance.
The Koyo Seiko APS4-12S-E2-D JTEKT APS412SE2D comes with a precision-balanced rotor and a high-quality bearing system, ensuring smooth and quiet operation. It features a unique vortex design that minimizes turbulence and maximizes flow rate, ensuring efficient cooling and long-lasting performance.
The water pump utilizes a dual-stage impeller that can handle both low and high engine speeds effectively. This design ensures that the engine stays cool during heavy usage, such as high-speed driving or towing, as well as during idle conditions.
Additionally, the Koyo Seiko APS4-12S-E2-D JTEKT APS412SE2D comes with a durable and heat-resistant gasket that ensures a tight seal and prevents coolant leaks. It is compatible with various cooling systems and can be easily installed with common hand tools.
In summary, the Koyo Seiko APS4-12S-E2-D JTEKT APS412SE2D aluminum water pump is a high-quality, efficient, and reliable cooling solution for automotive applications. Its durable aluminum housing, high-performance impeller, and quiet operation make it an excellent choice for drivers seeking optimal engine cooling and long-lasting performance.
The Koyo Seiko APS4-12S-E2-D JTEKT APS412SE2D is a pulley or idler assembly used in automotive applications, specifically for serpentine belts. This part is manufactured by Koyo Seiko, a well-known supplier of automotive components. Here are some pros and cons of buying this particular pulley assembly:
Pros:1. High-quality manufacturing: Koyo Seiko is a reputable brand in the automotive industry, known for producing high-quality components.
2. OEM (Original Equipment Manufacturer) fit: This pulley assembly is designed to fit specific vehicles as a direct replacement for the original part.
3. Durability: The pulley is made of strong materials and is built to withstand the rigors of automotive use.
4. Availability: This part is widely available from various automotive parts suppliers, ensuring easy access for customers.
5. Cost-effective: Compared to buying a new vehicle or even a remanufactured part, replacing a worn-out pulley with a new OEM part like the Koyo Seiko APS4-12S-E2-D JTEKT APS412SE2D is a cost-effective solution.
Cons:1. Cost: Although it is a cost-effective solution compared to some alternatives, the price of the pulley assembly may still be a deterrent for some customers.
2. Labor costs: If you are not comfortable installing the pulley assembly yourself, you will need to pay for labor costs to have it installed by a professional mechanic.
3. Potential for other issues: Replacing a worn-out pulley assembly does not guarantee that other related issues, such as pulley bearings or serpentine belt tensioner, will not arise in the future.
Conclusion:The Koyo Seiko APS4-12S-E2-D JTEKT APS412SE2D pulley assembly is a high-quality, OEM replacement part that offers durability and reliability for automotive applications. Although it may have a higher upfront cost compared to some alternatives, it is a cost-effective solution in the long run and is widely available from various automotive parts suppliers. Additionally, it is essential to consider labor costs and potential for other related issues when budgeting for this repair.
Recommendation:If you are experiencing issues with your serpentine belt system, such as a squeaking noise or difficulty starting your vehicle, it is recommended to replace the worn-out pulley assembly with a new OEM part like the Koyo Seiko APS4-12S-E2-D JTEKT APS412SE2D. This will ensure the reliable operation of your vehicle's belt system and prevent further damage to other components. It is also recommended to have the serpentine belt and tensioner inspected and replaced if necessary.
Details:
Sells new and surplus product develops channels to purchase such. Packaging and handling: items are safely eds packaged in custom shipping cartons for protection. All products are guaranteed to be working but may show signs of use. The product is used surplus.
Call to use a shipping service other than the ones listed.
specifications indusswitch:
- brand: Koyo Seiko
- mpn: Aps4-12s-e2-d
returns indusswitch:
- policy: returns accepted
- method: money back
- time: 30 days
- paid by: buyer
payments indusswitch:
- other
- wallet: google-pay
- credit card: mastercard
general indusswitch:
- category: Business & Industrial > Electrical Equipment Supplies > Switches > Accessories
shipping indusswitch:
- service: standard
- class: standard
- type: fixed
- transit: 2-6 days
seller indusswitch:
- # reviews: 166248
- rating: 96.8%
- city: 1 millennium dr, willingboro, nj 08046
offer indusswitch:
- in stock #: 5
- started: may 22, 2025
- prices: $11.00–$39.50
- item condition:
- New – Open box
- New
- sold #: 24
- options: ship-to-home
- availability: in stock




