Description
Product Video
1. Key Features & Benefits
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OEM cross references T407810 & 320-3602 – Direct replacement intake manifold pressure (IMP) sensor for Perkins C7.1 engines used in CAT336 and other C7.1‑powered excavators.
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Critical engine management component – Measures boost pressure in the intake manifold; ECU uses this data to adjust fuel delivery and turbo wastegate for optimal combustion.
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Restores engine performance – A failing sensor causes low power, black smoke, poor fuel economy, or derate mode. Replace it to bring back full engine response.
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Plug‑and‑play installation – 3‑pin connector, 14mm diameter, matches OEM fitment. No calibration required.
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OEM construction – Built to original specifications with robust housing and accurate pressure sensing element.
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Compact packaging – Shipped in protective paper box, ready for immediate installation.
2. Applications
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Mechanical repair shops – Common failure on high‑hour C7.1 engines. Stock this sensor for quick turbo system diagnostics.
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Mining & quarrying – Dust and heat accelerate sensor contamination; pre‑emptive replacement prevents unexpected derates.
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Heavy construction – Excavators working at varying altitudes need accurate boost readings for consistent power.
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Equipment rental fleet maintenance – Proactive sensor replacement avoids customer complaints about sluggish performance.
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Energy projects – Backup for C7.1 engines in generator or pump applications (check compatibility).
3. FAQ – Frequently Asked Questions
Q1: What are the symptoms of a bad intake pressure sensor (T407810)?
A: Common signs include: low power / sluggish acceleration, black smoke under load, poor fuel economy, engine derate (reduced max RPM), or diagnostic codes related to boost pressure (e.g., P0236, P0237, P0238).
Q2: Is this sensor compatible with all CAT C7.1 / Perkins C7.1 engines?
A: It fits most C7.1 common rail engines with 3‑pin connector and 14mm thread. However, we recommend you verify your original part number. Send us a photo of the old sensor or your engine serial number – we will confirm within 2 hours.
Q3: Does this sensor require programming after installation?
A: No. The IMP sensor is a simple analog or digital device. On C7.1 engines, no ECU reprogramming is needed. However, we recommend clearing any stored pressure‑related codes after replacement.
Q4: Do you offer a warranty?
A: Yes, we provide a 6‑month warranty against manufacturing defects (sensing element drift, electrical failure, housing cracks). Damage from physical impact or contamination is not covered.
Q5: What is the MOQ?
A: MOQ is 1 piece. Bulk orders welcome.
Q6: How long does delivery take?
A: 6–8 working days for most destinations. Express shipping (DHL/FedEx) is available.
Q7: What payment methods do you accept?
A: T/T, XTransfer, PayPal, Western Union.
Q8: Any installation tips?
A: Clean the intake manifold port before installation. Do not overtorque – use 10–12 Nm. Apply a tiny amount of anti‑seize to threads (avoid sensor tip). Reconnect the 3‑pin harness until it clicks.
Still have questions? Contact Hongtengda Parts – we reply within 24 hours.
