ATL Motor
Premium Quality
You are here: Home » Products Category » Alternator » Alternator for VALEO » Alternator for VALEO OEM Reference Number FG18T173 Lester 21523 12V 180A
Alternator for VALEO OEM Reference Number FG18T173 Lester 21523 12V 180A

loading

Alternator for VALEO OEM Reference Number FG18T173 Lester 21523 12V 180A Alternator for VALEO OEM Reference Number FG18T173 Lester 21523 12V 180A
Alternator for VALEO OEM Reference Number FG18T173 Lester 21523 12V 180A Alternator for VALEO OEM Reference Number FG18T173 Lester 21523 12V 180A
Alternator for VALEO OEM Reference Number FG18T173 Lester 21523 12V 180A Alternator for VALEO OEM Reference Number FG18T173 Lester 21523 12V 180A
Alternator for VALEO OEM Reference Number FG18T173 Lester 21523 12V 180A Alternator for VALEO OEM Reference Number FG18T173 Lester 21523 12V 180A
Alternator for VALEO OEM Reference Number FG18T173 Lester 21523 12V 180A Alternator for VALEO OEM Reference Number FG18T173 Lester 21523 12V 180A
Alternator for VALEO OEM Reference Number FG18T173 Lester 21523 12V 180A Alternator for VALEO OEM Reference Number FG18T173 Lester 21523 12V 180A

Alternator for VALEO OEM Reference Number FG18T173 Lester 21523 12V 180A

5 0 Reviews

Availability:
Quantity:
  • FG18T173

  • 21523

  • Valeo

  • Alternator

Aftermarket Alternator FG18T173, Lester 21523, 12V 180A. Direct OE‑spec replacement for Nissan & Infiniti. High‑output stable charging performance, pre‑fitted with clutch pulley and regulator‑brush assembly. Broad cross‑reference numbers for simple workshop installation and durable on‑road performance.
 
Product Description

The Main Parameters:

PropertyValue
BrandVALEO
Voltage (V)12
Amperage (A)180
RotationCW
Pulley TypeClutch
Pulley Grooves7
Pulley Diameter (mm)49


Introduction

This is a high-quality aftermarket replacement alternator engineered to match OE specifications for Renault vehicles. Rated at 12V and 180A, it delivers consistent and powerful charging performance to support heavy onboard electrical loads. Fully assembled with clutch pulley, regulator and brush holder, it is designed as a direct drop-in replacement for the original unit, ideal for repair shops and vehicle replacement projects. Rigorously manufactured and tested to offer stable voltage output, excellent heat dissipation and long service life.


Key Features

  • 12V, 180A high output, stable charging even at engine idle

  • Exact OE-spec design, direct fit, no modification required

  • Pre-assembled complete unit with clutch pulley, regulator and brush holder

  • CW rotation, 7-groove clutch pulley, 49mm pulley diameter

  • Strict quality control for low voltage fluctuation and great heat resistance

  • Wide cross-reference part numbers for quick part lookup

  • Durable construction for extended service life under daily driving conditions


Confirmed Vehicle Fitments

Fits RENAULT models with R9N400 / R9N401 engine:

  • Scénic IV (J9) 1.7 Blue dCi 120 / 150

  • Talisman (LP) 1.7 Blue dCi 120

  • Talisman Grandtour (KP) 1.7 Blue dCi 120

  • Grand Scénic IV (R9) 1.7 Blue dCi 120 / 150

  • Kadjar (HA, HL) 1.7 Blue dCi 150 / 1.7 Blue dCi 150 4WD

  • Koleos II (HC) 1.7 Blue dCi 150

  • Megane IV Hatchback / Grandtour (B9A/M/N) 1.8 Blue dCi 150


Compatibility

Cross Reference Numbers:

Lester: 21523

Valeo OE: FG18T173, FG18T208, FGN18T173, FGN18T-OS, 271414IB, 443312

Renault OE: 231004742R, 231004742RT

WAI: 21523N, 21523SN, A143.757

Other aftermarket codes: ALT1J566, AC-CBA6208, 28-84941, CCB-13261, ANM100482, UD101064A, L52340, G104359, CAL1569GS, 40781, JA031740, DRA2228, ALT176KUHN, 2303801802, ALT0214, 28-8694, 209753A, 12091039, 115425, 909180, 32005028, 20015A690V, ALV3867, 555289RI, 555289RIV, 442800, LRA04540, LRA4540, 4852029, IR5335, 2017996A0E, ALT2490CP, 2015A691, ALT17A690, AL04423, 831025032, WAL00968, WG2471860, WG2691920


Important Fitment Note

✅ Please verify your original part number (OE / Lester number), engine code and production year before ordering.

✅ Fitment information is for reference only. Vehicle trim, build date and regional specifications may affect compatibility.

✅ Confirm the rotation direction, pulley type, groove quantity and connector position match your old alternator.

✅ Professional installation is recommended. This is an aftermarket replacement part, not an original OEM unit.


FAQ:

Q1. How long is your delivery time?

A: Generally it takes 45-60 days if the goods are out of stock. If it is in stock, it takes 7 days.


Q2. Do you provide samples ? is it free or extra ?

A: Samples are available. Buyer covers sample cost and freight; sample cost is refundable on bulk order.


Q3. What are your terms of packing?

A: Generally, we pack our goods in neutral cartons. If you have a legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.


Q4. Do you test all your goods before delivery?

A: Yes, we have 100% test before delivery.


Q5.How about your warranty?

A:Our warranty is one year.


Model
OEMOEM Reference
Lester21523
3EFFEALTJ566
ACAUTOAC-CBA6208
AINDE28-8649CT
AINDECGB-13261
ANDELANM100482
AS-PLUD101064A
ATL AUTOTECHNIKL52340
BTS TURBOG104359
CASCOCAL15A69GS
CEVAM40781
DA SILVA031740
DA SILVAJA031740
DELCODRA2228
DIPASPORTALT176KUHN
DRI2303801802
ELECTROLOGALT0214
ELSTOCK28-8649
ERA209753A
EUROTEC12091039
FARCOM115425
FRIESEN9091880
HERTH+BUSS32005028
ITAB AUTOMOTIVE20015A69OV
KRAUFALV3867
KUHNER555289RI
KUHNER555289RIV
LOGISTIK442800
LUCASLRA04540
LUCASLRA4540
NK4852029
PROTECHIR5335
REAL2017996AOE
RENAULT231004742
RENAULT231004742R
RENAULT231004742RA
RENAULT231004742RT
RENAULT231005113R
ROLLCOALT2496CP
SANDO2015A69.1
SIOMALT17A690
TMIAL04423
TRISCAN831025032
VALEO2714141B
VALEO443312
VALEOFG18T173
VALEOFG18T208
VALEOFGN18T173
VALEOFGN18T208
WAI21523-OS
WAI21523N
WAI21523OS
WAI575.976.180.000
WAI575.976.180.340
WAI575.976.180.440
WAIA143.757
WALKERWAL00968
WILMINK GROUPWG2471860
WILMINK GROUPWG2691920


Applicable Models
MakeModelTypeYear
RENAULTSCÉNIC IV (J9_) 1.7 Blue dCi 120 (J9A7, J9A8)R9N40008.2018 - 07.2022
RENAULTSCÉNIC IV (J9_) 1.7 Blue dCi 120 (J9A7, J9A8)R9N40108.2018 - 07.2022
RENAULTTALISMAN Grandtour (KP_) 1.7 Blue dCi 120 (KPA7)R9N40109.2018 - 03.2022
RENAULTTALISMAN (LP_) 1.7 Blue dCi 120 (LPA7)R9N40109.2018 - 03.2022
RENAULTGRAND SCÉNIC IV (R9_) 1.7 Blue dCi 120 (R9A7, R9A8)R9N40008.2018 - 03.2023
RENAULTGRAND SCÉNIC IV (R9_) 1.7 Blue dCi 120 (R9A7, R9A8)R9N40108.2018 - 03.2023
RENAULTKOLEOS II (HC_) 1.7 BLUE dCi 150 (HCA7)R9N40106.2019 -
RENAULTKADJAR (HA_, HL_) 1.7 Blue dCi 150 (HLA7)R9N40108.2018 -
RENAULTSCÉNIC IV (J9_) 1.7 Blue dCi 150 (J9A7, J9A8)R9N40008.2018 - 07.2022
RENAULTSCÉNIC IV (J9_) 1.7 Blue dCi 150 (J9A7, J9A8)R9N40108.2018 - 07.2022
RENAULTTALISMAN Grandtour (KP_) 1.7 Blue dCi 150 (KPA8)R9N40109.2018 - 03.2022
RENAULTTALISMAN (LP_) 1.7 Blue dCi 150 (LPA8)R9N40109.2018 - 03.2022
RENAULTGRAND SCÉNIC IV (R9_) 1.7 Blue dCi 150 (R9A7, R9A8)R9N40108.2018 - 03.2023
RENAULTKADJAR (HA_, HL_) 1.7 Blue dCi 150 4WD (HLA7)R9N40108.2018 -
RENAULTMEGANE IV Hatchback (B9A/M/N_) 1.8 Blue dCi 150 (B9A7)R9N40102.2019 -
RENAULTMEGANE IV Grandtour (K9A/M/N_) 1.8 Blue dCi 150 (K9A7)R9N40102.2019 -


facebook sharing button
twitter sharing button
line sharing button
wechat sharing button
linkedin sharing button
pinterest sharing button
whatsapp sharing button
sharethis sharing button
Previous: 
Next: 
Leave a Message
GET IN TOUCH

CONTACT US

Tel: +86-15967899121
WhatsApp: +86-15967899121
Email: maddy@alteringauto.com
Address: 4F, BUILDING 8, NINGBO INDUSTRIAL INTERNET VEKEN PARK, NO. 1678, YANGFAN ROAD, HI-TECH ZONE, NINGBO, ZHEJIANG PROVINCE, CHINA

QUICK LINKS

PRODUCTS

HELP

NEWSLETTER SUBSCRIPTION

Subscribe to our newsletter to be the first to know about news and offers
Subscribe
Copyright © 2026 NINGBO HI-TECH ALTERING MOTOR CO., LTD. All Rights Reserved.